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Which VLM should judge style diversity?

Style diversity is a subtle ImageBench category. The judge needs to recognize whether a requested visual style is actually present, without rewarding generic beauty or punishing images simply because they are not photorealistic.

We sampled 100 Style Diversity outputs across 18 image models, ran five local VLM judges, then manually reviewed only the 16 images where the VLMs disagreed. That made the human work focus on calibration signal instead of consensus cases.

On those disagreement cases, Qwen 3.5 122B and Gemma 4 26B tied at 75% agreement with human review. We are choosing Qwen 3.5 122B for the benchmark route because it was the more balanced judge: slightly less permissive than Gemma, with fewer false PASS calls on human-labeled failures.

Agreement vs human review

The table covers the 16 VLM-disagreement images. PASS is the positive class: the requested style is clearly recognizable.

VLMCorrectAgreementTPFPTNFN
Gemma 4 26B12/1675%9430
Qwen3-VL5/1631%0259
Qwen 3.5 122B12/1675%8341
Qwen 3.6 27B10/1662%8521
Qwen 3.6 35B9/1656%9700

Conclusion

Qwen3-VL was too strict for this task. It failed many images that human review accepted as visibly matching the requested style, which would make Style Diversity scores artificially low.

Qwen 3.6 35B was too permissive on the reviewed set: it accepted every disagreement image, including seven human-labeled failures. Qwen 3.6 27B was closer, but still had more false PASS calls than Qwen 3.5.

Gemma 4 26B was a strong permissive judge. It matched all nine human PASS cases, but it also accepted four human FAIL cases.

We will use Qwen 3.5 122B as the ImageBench V1 Style Diversity judge. It matched Gemma on overall agreement, caught most human PASS cases, and made fewer false PASS calls on images where the requested style was not clear enough.

Reviewed disagreement matrix

Cells with a red inset outline disagree with the human review. Reasons are the original VLM responses from the calibration run.

Image modelImagePromptHumanGemma 4 26BQwen3-VLQwen 3.5 122BQwen 3.6 27BQwen 3.6 35B

fal/fal-ai/ideogram/v3

Easy

006__fal--fal-ai--ideogram--v3__GraphicalDesign_StyleDiversity_Easy__p1.png

A golden retriever sitting in a garden, painted in the style of an oil painting with visible brushstrokes and rich texture

Criteria: Style recognizable by any viewer

FAILFAIL
reason

The image depicts a golden retriever in a garden, but it fails to capture the requested art style. Instead of an oil painting with visible brushstrokes and rich texture, the image appears as a highly smoothed, digital-looking rendering with a photographic or airbrushed quality. There are no discernible painterly brushstrokes or the tactile texture characteristic of an oil painting. VERDICT: FAIL

FAIL
reason

The image depicts a golden retriever in a garden setting, and while it has painterly qualities, the brushstrokes are not clearly visible or textured enough to convincingly emulate traditional oil painting. The fur and background appear overly smooth and digitally rendered, lacking the impasto texture and expressive brushwork characteristic of oil painting. The style is more photorealistic with soft painterly effects rather than a distinct oil painting style. VERDICT: FAIL

PASS
reason

The image clearly exhibits the characteristics of an oil painting: visible, expressive brushstrokes are evident in the foliage, fur, and background; the texture is rich and layered, mimicking impasto techniques; and the color blending and lighting have a painterly quality rather than photographic realism. The golden retriever and garden setting are rendered with artistic interpretation consistent with traditional oil portraiture. The requested style is not only present but well-executed. VERDICT: PASS

PASS
reason

The image clearly exhibits the characteristics of an oil painting. The fur of the dog and the petals of the roses show distinct, directional brushwork rather than photorealistic detail. The lighting has a soft, blended quality typical of oil glazing, and the background foliage is rendered with loose, expressive strokes. The overall texture and color saturation align well with the requested "oil painting with visible brushstrokes and rich texture" style. VERDICT: PASS

PASS
reason

The image successfully captures the requested visual style. The rendering of the dog and the surrounding roses exhibits a painterly quality rather than photographic realism. There are visible textural variations in the fur and petals that mimic the application of paint, and the lighting has a soft, blended quality characteristic of oil painting techniques. The overall aesthetic aligns well with the prompt's request for an oil painting style with rich texture. VERDICT: PASS

qwen-image-local/qwen-image-gen

Easy

016__qwen-image-local--qwen-image-gen__GraphicalDesign_StyleDiversity_Easy__p1.png

A golden retriever sitting in a garden, painted in the style of an oil painting with visible brushstrokes and rich texture

Criteria: Style recognizable by any viewer

FAILFAIL
reason

The image is a highly realistic, photographic-style portrait of a golden retriever. It lacks the requested "oil painting" style, specifically missing the visible brushstrokes and rich, painterly texture. Instead, it presents smooth, high-fidelity digital rendering that mimics a real photograph. VERDICT: FAIL

PASS
reason

The image clearly exhibits the requested oil painting style: visible brushstrokes are evident in the fur texture and background foliage, and the overall composition has rich, textured layers with painterly blending. The golden retriever is depicted in a garden setting as requested, and the style is unmistakably impressionistic and painterly rather than photorealistic. VERDICT: PASS

FAIL
reason

The image depicts a golden retriever in a garden setting, which matches the subject of the prompt. However, the requested style — “oil painting with visible brushstrokes and rich texture” — is not clearly recognizable. The image appears to be a hyper-realistic digital render or AI-generated photo with smooth, blended textures and no discernible brushwork. While it has painterly qualities in color and lighting, it lacks the defining characteristic of visible brushstrokes and textured impasto typical of oil paintings. The style leans more toward photorealism than traditional oil painting technique. VERDICT: FAIL

PASS
reason

The image clearly exhibits the characteristics of an oil painting. The fur of the golden retriever is rendered with distinct, directional strokes that mimic the application of paint rather than photorealistic detail. The background foliage is soft and impressionistic, with visible blending and texture typical of oil on canvas. The lighting and color saturation also contribute to a painterly aesthetic rather than a photographic one. The requested style is unmistakably present. VERDICT: PASS

PASS
reason

The image clearly depicts a golden retriever in a garden setting. The visual characteristics requested in the prompt—specifically the "oil painting" style with "visible brushstrokes" and "rich texture"—are strongly present. The fur, background foliage, and lighting all exhibit a painterly quality with distinct, textured strokes rather than photorealistic smoothness. The style is the dominant feature of the image. VERDICT: PASS

bfl/flux-2-klein-4b

Easy

019__bfl--flux-2-klein-4b__GraphicalDesign_StyleDiversity_Easy__p2.png

A golden retriever sitting in a garden, rendered in Japanese anime style with flat colors and large expressive eyes

Criteria: Style recognizable by any viewer

PASSPASS
reason

The image clearly follows the requested Japanese anime style. It features the characteristic large, expressive eyes, clean line art, and a flat color aesthetic with minimal shading. The subject (golden retriever) and setting (garden) are also accurately depicted according to the prompt. VERDICT: PASS

FAIL
reason

The image depicts a golden retriever in a garden, but it lacks the key characteristics of Japanese anime style. The dog’s fur is rendered with detailed shading and texture, not flat colors. The eyes are large and expressive, which matches, but the overall style is more illustrative or cartoonish rather than distinctly anime. The background has soft gradients and painterly elements, not the flat, bold color blocks typical of anime. The style is not clearly recognizable as requested. VERDICT: FAIL

PASS
reason

The image clearly exhibits the requested Japanese anime style. Key characteristics are present: the dog has large, expressive eyes with prominent highlights, simplified facial features, and clean outlines. The coloring is relatively flat with soft shading rather than photorealistic gradients, consistent with anime or manga illustration styles. The background also follows this stylized approach with vibrant, simplified flowers and trees. VERDICT: PASS

PASS
reason

The image clearly exhibits the requested "Japanese anime style." Key characteristics are present: 1. **Line Art:** The subject and background are defined by distinct, clean black outlines, typical of anime and manga. 2. **Eyes:** The dog has large, expressive eyes with prominent highlights and detailed irises, which is a hallmark of anime character design. 3. **Coloring:** The colors are relatively flat with simple shading, avoiding the complex texturing of photorealism or oil painting styles. 4. **Background:** The trees and flowers are stylized in a way consistent with anime backgrounds (cel-shaded look). The prompt's specific request for "flat colors and large expressive eyes" is directly fulfilled. VERDICT: PASS

PASS
reason

The image clearly exhibits the requested Japanese anime style. The golden retriever features large, expressive eyes with prominent highlights, a simplified facial structure, and clean, distinct outlines typical of anime character design. The coloring is flat with minimal shading gradients, and the background elements (trees, flowers) are stylized with bold lines and vibrant, solid colors rather than realistic textures. These key visual characteristics align well with the prompt's requirements. VERDICT: PASS

bfl/flux-2-klein-9b

Easy

020__bfl--flux-2-klein-9b__GraphicalDesign_StyleDiversity_Easy__p2.png

A golden retriever sitting in a garden, rendered in Japanese anime style with flat colors and large expressive eyes

Criteria: Style recognizable by any viewer

PASSPASS
reason

The image clearly follows the requested style. It features a Japanese anime-inspired aesthetic with large, expressive eyes, clean line art, and flat, vibrant colors. The subject (a golden retriever) and the setting (a garden) are also accurately depicted according to the prompt. VERDICT: PASS

FAIL
reason

The image features a golden retriever in a garden, with large, expressive eyes and a simplified, stylized form consistent with Japanese anime. However, the rendering lacks flat colors — instead, it uses subtle shading and gradients to suggest volume and depth, which contradicts the prompt’s explicit request for flat colors. The style is recognizable as anime-inspired, but the key visual element (flat colors) is missing, making the requested style not clearly or fully present. VERDICT: FAIL

PASS
reason

The image clearly exhibits the requested Japanese anime style. Key characteristics are present: the golden retriever has large, expressive eyes with prominent highlights, simplified facial features, and clean outlines. The colors are flat and vibrant without complex shading or realistic textures, consistent with anime aesthetics. The background is stylized and cartoonish, complementing the character design. All elements align with the prompt’s stylistic requirements. VERDICT: PASS

PASS
reason

The image clearly exhibits the requested "Japanese anime style." Key characteristics are present: 1. **Large expressive eyes:** The dog has oversized, glossy eyes with distinct highlights, a hallmark of anime character design. 2. **Flat colors:** The shading is done in distinct blocks of color rather than smooth, realistic gradients, consistent with cel-shading or flat coloring techniques common in anime. 3. **Line art:** The subject and background elements are defined by clear, dark outlines. The style is unmistakable and matches the prompt's specific request. VERDICT: PASS

PASS
reason

The image clearly exhibits the requested Japanese anime style. The dog features the characteristic large, glossy, expressive eyes and simplified facial structure typical of anime character design. The rendering uses flat colors with distinct outlines, avoiding realistic shading or textures, which aligns perfectly with the prompt's requirements for "flat colors" and "Japanese anime style." The overall aesthetic is consistent with anime illustrations. VERDICT: PASS

fal/fal-ai/bytedance/seedream/v4/text-to-image

Easy

023__fal--fal-ai--bytedance--seedream--v4--text-to-image__GraphicalDesign_StyleDiversity_Easy__p2.jpg

A golden retriever sitting in a garden, rendered in Japanese anime style with flat colors and large expressive eyes

Criteria: Style recognizable by any viewer

PASSPASS
reason

The image successfully captures the requested Japanese anime style. It features the key visual characteristics: large, expressive eyes, clean line art, and a stylized, illustrative aesthetic. The coloring is relatively flat with simple shading, and the subject (a golden retriever in a garden) is clearly rendered in the specified artistic manner. VERDICT: PASS

FAIL
reason

The image depicts a golden retriever in a garden, matching the subject. The style is clearly Japanese anime: large, expressive, wide-set eyes; simplified, clean lines; and a stylized, cartoonish rendering. However, the fur has visible shading and texture lines that contradict “flat colors,” and the background has soft depth-of-field blur and realistic lighting that leans toward Western illustration or digital painting rather than strict anime flatness. The “flat colors” element is notably absent — the image uses gradients and shading to suggest volume, which is inconsistent with the prompt’s request. VERDICT: FAIL

PASS
reason

The image clearly exhibits the requested Japanese anime style. Key characteristics are present: the dog has large, expressive eyes with distinct highlights; the coloring uses flat, vibrant tones with minimal shading gradients typical of cel-shaded animation; and the overall composition and line work resemble a high-quality anime illustration. The background is stylized with soft focus and saturated colors, consistent with anime garden scenes. VERDICT: PASS

PASS
reason

The image clearly exhibits the requested "Japanese anime style." Key characteristics are present: 1. **Large expressive eyes:** The dog has oversized, detailed eyes with distinct highlights, a hallmark of anime character design. 2. **Flat colors and line art:** The rendering uses clean outlines and relatively flat shading with minimal complex texturing, consistent with traditional 2D animation or anime illustration. 3. **Subject accuracy:** It depicts a golden retriever sitting in a garden as requested. The style is distinct and recognizable as anime rather than photorealistic or generic digital art. VERDICT: PASS

PASS
reason

The image successfully captures the requested Japanese anime style. The dog features the characteristic large, expressive eyes with prominent highlights, simplified facial features, and clean line work. The coloring is vibrant and relatively flat, typical of anime backgrounds and character designs, rather than photorealistic shading. The overall aesthetic aligns well with the prompt's specific stylistic requirements. VERDICT: PASS

fal/fal-ai/ideogram/v3

Easy

024__fal--fal-ai--ideogram--v3__GraphicalDesign_StyleDiversity_Easy__p2.png

A golden retriever sitting in a garden, rendered in Japanese anime style with flat colors and large expressive eyes

Criteria: Style recognizable by any viewer

PASSPASS
reason

The image successfully captures the requested Japanese anime style. It features the characteristic "large expressive eyes" with detailed highlights, clean line art, and a vibrant, painterly aesthetic common in high-quality anime backgrounds. The colors are bright and the lighting is stylized, fulfilling the "flat colors" and "anime style" requirements effectively. VERDICT: PASS

FAIL
reason

The image depicts a golden retriever in a garden setting, but the style is not Japanese anime. The dog’s fur is rendered with detailed shading and texture, not flat colors. The eyes are large and expressive, which aligns with anime, but the overall style is more realistic or stylized naturalism, lacking the flat color blocks, simplified forms, and exaggerated proportions typical of Japanese anime. The background has soft painterly effects, not the clean, flat aesthetic requested. VERDICT: FAIL

PASS
reason

The image clearly exhibits the requested Japanese anime style. Key characteristics are present: the golden retriever has large, expressive eyes with distinct highlights, simplified yet stylized facial features, and soft but flat color shading typical of anime. The background elements (cherry blossoms, stone lantern, foliage) are rendered in a complementary anime aesthetic with vibrant, non-photorealistic colors and clean outlines. While some depth and texture are added for visual appeal, the overall look remains firmly within the anime genre as specified. VERDICT: PASS

PASS
reason

The requested style is "Japanese anime style with flat colors and large expressive eyes." 1. **Large expressive eyes**: The dog has large, shiny, detailed eyes typical of anime character design. 2. **Flat colors**: The image uses distinct blocks of color with minimal gradient shading, characteristic of cel-shading or flat coloring in anime. 3. **Japanese anime style**: The overall aesthetic, including the line work, the rendering of the fur, the background elements (cherry blossoms, stone lantern), and the lighting effects, strongly evokes the visual language of Japanese animation. The key visual characteristics are clearly present and recognizable. VERDICT: PASS

PASS
reason

The image successfully captures the requested Japanese anime style. The golden retriever features the characteristic large, expressive eyes with detailed highlights, a simplified facial structure, and stylized fur rendering. The color palette uses flat, vibrant blocks of color for the grass and foliage, typical of anime backgrounds. The overall aesthetic, including the soft lighting and cherry blossom elements, aligns well with the "anime style" prompt. VERDICT: PASS

fal/fal-ai/nano-banana-2

Easy

025__fal--fal-ai--nano-banana-2__GraphicalDesign_StyleDiversity_Easy__p2.png

A golden retriever sitting in a garden, rendered in Japanese anime style with flat colors and large expressive eyes

Criteria: Style recognizable by any viewer

PASSPASS
reason

The image clearly adheres to the requested Japanese anime style. It features the characteristic large, expressive eyes on the golden retriever, the use of flat colors with minimal shading, and a clean, illustrative aesthetic. The setting also complements the requested theme. VERDICT: PASS

FAIL
reason

The image features a golden retriever in a garden setting with Japanese elements (bridge, torii, pagoda-style house, cherry blossoms). However, the dog’s rendering lacks the key characteristics of Japanese anime style: flat colors (the fur has visible shading and texture), and large expressive eyes (the eyes are realistic and detailed, not exaggerated or stylized). The overall style leans more toward a colorful, cartoonish illustration rather than anime. The requested style is not clearly recognizable. VERDICT: FAIL

PASS
reason

The image clearly exhibits the requested Japanese anime style. Key characteristics are present: the golden retriever has large, expressive eyes with prominent highlights, a simplified and stylized facial structure, and clean outlines. The colors are vibrant and largely flat with minimal shading, consistent with anime aesthetics. The background elements (cherry blossoms, Japanese house, bridge) also follow this stylized, illustrative approach. The overall composition and rendering match the prompt’s stylistic requirements. VERDICT: PASS

PASS
reason

The requested style is "Japanese anime style with flat colors and large expressive eyes." - **Large expressive eyes**: The dog has very large, shiny, detailed eyes typical of anime/manga character design. - **Flat colors**: The image uses solid blocks of color with minimal shading or texture, consistent with flat coloring techniques often seen in anime backgrounds and character art. - **Japanese anime style**: The overall aesthetic—including the stylized proportions, clean lines, vibrant palette, and background elements like the torii gate, stone lantern, and cherry blossoms—strongly evokes a Japanese anime or manga illustration style. All key characteristics of the requested style are clearly present and recognizable. VERDICT: PASS

PASS
reason

The image clearly exhibits the requested Japanese anime style. The character design features the characteristic "large expressive eyes" with prominent highlights and a simplified, cute facial structure (chibi-influenced proportions). The rendering uses flat colors with distinct outlines, avoiding realistic shading in favor of a stylized, illustrative look typical of anime and manga. The background elements, such as the cherry blossoms and the traditional architecture, are also drawn in this consistent 2D animated style. VERDICT: PASS

fal/fal-ai/ideogram/v3

Medium

031__fal--fal-ai--ideogram--v3__GraphicalDesign_StyleDiversity_Medium__p1.png

A city street scene in the style of Art Deco — geometric shapes, gold and black palette, ornamental symmetry

Criteria: Key visual characteristics of movement present

FAILPASS
reason

The image captures the essence of the Art Deco era through the streamlined, aerodynamic design of the vintage car and the vertical, stepped architecture of the city street. The color palette features rich golds, deep purples/blacks, and warm lighting, which aligns with the requested aesthetic. The geometric shapes of the buildings and the symmetrical composition of the street scene further reinforce the Art Deco style. VERDICT: PASS

PASS
reason

The image clearly embodies Art Deco style: the car features geometric curves and chrome accents, the buildings display vertical symmetry and stylized ornamentation, and the palette uses warm golds and deep blacks. The street tiles and lampposts reinforce the symmetrical, decorative aesthetic. All key elements of the requested style are unmistakably present. VERDICT: PASS

FAIL
reason

The image depicts a city street with a vintage car, but it does not clearly reflect the requested Art Deco style as defined by the prompt. While there are some symmetrical elements and ornate lampposts that hint at Art Deco architecture, the overall palette is dominated by warm browns, maroons, and soft twilight tones — not the specified “gold and black.” The geometric shapes are not emphasized; instead, the scene leans toward realistic rendering with soft lighting and reflections. The car itself is stylized but not in a way that strongly evokes Art Deco design (e.g., no bold geometric patterns or metallic gold/black contrast). The symmetry is present but not ornamental in the Art Deco sense. VERDICT: FAIL

PASS
reason

The requested style is Art Deco, characterized by geometric shapes, a gold and black palette, and ornamental symmetry. - **Geometric shapes**: The architecture features strong vertical lines and repetitive rectangular windows, fitting the geometric aesthetic. The car itself has streamlined curves typical of the era's automotive design. - **Gold and black palette**: The lighting creates a strong contrast between the warm, golden hues of the streetlights and building facades and the deep shadows (blacks/dark purples) of the car and recessed areas. This fits the requested palette well. - **Ornamental symmetry**: The composition is highly symmetrical, with streetlights and buildings mirroring each other on either side of the central vanishing point. The car is centered, reinforcing this symmetry. The image clearly embodies the Art Deco style through its composition, color scheme, and subject matter. VERDICT: PASS

PASS
reason

The image successfully captures the requested Art Deco style through several key visual elements. The architecture features strong vertical lines, setbacks, and geometric forms characteristic of the style. The color palette is dominated by golds, creams, and deep blacks/dark blues, creating a luxurious atmosphere. The car itself is a classic streamlined design that fits the era, and the ornamental details on the buildings and street lamps contribute to the overall symmetry and decorative aesthetic. The lighting and reflections enhance the geometric quality of the scene. VERDICT: PASS

qwen-image-local/qwen-image-gen

Medium

041__qwen-image-local--qwen-image-gen__GraphicalDesign_StyleDiversity_Medium__p1.png

A city street scene in the style of Art Deco — geometric shapes, gold and black palette, ornamental symmetry

Criteria: Key visual characteristics of movement present

FAILFAIL
reason

The image depicts a realistic, modern city street scene with a cinematic lighting style. While it uses a warm, golden-toned color palette, it lacks the defining characteristics of the Art Deco style requested. There are no geometric shapes, ornamental symmetry, or the specific stylized architectural details associated with Art Deco. The image is a standard photographic-style depiction of a city rather than an Art Deco illustration or stylized scene. VERDICT: FAIL

FAIL
reason

The image depicts a modern city street with skyscrapers and contemporary vehicles, lacking the defining Art Deco elements: geometric ornamentation, stylized signage, symmetrical decorative motifs, or a deliberate gold-and-black palette. The buildings are rendered in a realistic, contemporary architectural style, not Art Deco. The lighting and color scheme are atmospheric but do not enforce the requested stylistic constraints. The prompt’s key visual characteristics are absent. VERDICT: FAIL

FAIL
reason

The image depicts a city street scene with tall buildings and vehicles, but it does not clearly reflect the requested Art Deco style. While there are some vertical lines and ornamental elements on building facades, the overall aesthetic is more photorealistic and atmospheric — resembling a cinematic or hyper-real urban sunset scene rather than stylized Art Deco. The palette is dominated by warm golden-hour tones and deep shadows, not the specified “gold and black” with geometric shapes and ornamental symmetry typical of Art Deco design. The composition lacks the deliberate stylization, decorative motifs, and graphic quality that define Art Deco art. VERDICT: FAIL

PASS
reason

The requested style is Art Deco, characterized by geometric shapes, a gold and black palette, and ornamental symmetry. - **Palette**: The image heavily utilizes a gold/sepia and black/dark grey color scheme, fitting the "gold and black palette" requirement perfectly. - **Geometric Shapes**: The architecture features strong vertical lines, stepped forms (reminiscent of the Empire State Building), and rectangular windows, which align with the geometric nature of Art Deco. - **Ornamental Symmetry**: While the street perspective creates a natural vanishing point rather than perfect bilateral symmetry, the composition is balanced, and the architectural details (like the signage and building facades) exhibit the stylized, linear ornamentation typical of the era. The image successfully evokes the aesthetic of the Art Deco period, particularly through its color grading and architectural focus. VERDICT: PASS

PASS
reason

The image displays a city street scene that strongly adheres to the requested Art Deco style. The architecture features the characteristic vertical lines and setbacks of skyscrapers (reminiscent of the Chrysler Building). The color palette is dominated by deep blacks, dark shadows, and rich golds/yellows, creating a high-contrast, luxurious look. Furthermore, the image includes specific ornamental details such as the geometric patterns on the vertical signs and the stylized lettering on the storefronts, which fulfill the requirement for "ornamental symmetry" and geometric shapes. The overall aesthetic is cohesive and clearly interprets the prompt's stylistic constraints. VERDICT: PASS

bfl/flux-2-max

Hard

053__bfl--flux-2-max__GraphicalDesign_StyleDiversity_Hard__p1.png

A forest rendered in photorealistic watercolor — the detail and lighting of a photo combined with visible watercolor bleeds and paper texture

Criteria: Both styles visually identifiable in result

PASSPASS
reason

The image successfully captures the requested "photorealistic watercolor" style. It combines high-fidelity lighting and atmospheric depth (the "photorealistic" aspect) with clear watercolor characteristics, such as soft pigment bleeds in the light rays, painterly textures in the foliage, and a visible paper grain texture throughout the composition. VERDICT: PASS

FAIL
reason

The image presents a forest scene with soft, diffused lighting and atmospheric depth reminiscent of a photograph, yet it lacks the defining characteristics of watercolor: visible paper texture, brushstroke bleeding, or translucent washes. The rendering appears digitally smooth and painterly but not watercolor-specific. The “photorealistic watercolor” hybrid is not convincingly achieved; the style is more akin to digital painting or illustration. VERDICT: FAIL

PASS
reason

The image successfully captures the requested hybrid style. It exhibits the luminous, soft-focus lighting and atmospheric depth typical of photorealism, while simultaneously displaying the textural qualities of watercolor—such as visible paper grain, soft pigment bleeds at the edges of foliage, and a slightly translucent layering effect. The combination of realistic lighting with painterly textures matches the prompt’s specific requirements. VERDICT: PASS

PASS
reason

The requested style is "photorealistic watercolor," defined as having the detail and lighting of a photo combined with visible watercolor bleeds and paper texture. Looking at the image: - **Lighting and Detail**: The lighting is soft and atmospheric, with dappled sunlight filtering through trees. The detail is high but not hyper-sharp; it has a painterly softness consistent with watercolor. - **Watercolor Characteristics**: There are clear signs of watercolor techniques — soft edges, color bleeding (especially in the foliage and misty background), and layered washes. - **Paper Texture**: A subtle grain or paper texture is visible throughout, particularly in the mid-tones and highlights, which supports the “watercolor on paper” aesthetic. - **Photorealism Aspect**: While not strictly photorealistic in the sense of digital photography, the composition, depth, and naturalistic rendering of light and shadow give it a realistic feel that aligns with the prompt’s intent — blending photographic realism with watercolor medium traits. The key visual characteristics requested — watercolor bleeds, paper texture, and photo-like lighting/detail — are all present and recognizable. VERDICT: PASS

PASS
reason

The image successfully captures the requested visual style. It presents a forest scene that mimics the high fidelity and lighting of a photograph, yet distinctly incorporates the aesthetic qualities of watercolor. The visible paper texture is evident throughout the image, particularly in the mid-tones and highlights. Furthermore, the "watercolor bleeds" are apparent in the soft, diffused edges of the light rays filtering through the trees and the blending of colors in the foliage and shadows. The combination of realistic subject matter with these specific artistic techniques fulfills the prompt's requirements. VERDICT: PASS

bfl/flux-2-pro

Hard

054__bfl--flux-2-pro__GraphicalDesign_StyleDiversity_Hard__p1.png

A forest rendered in photorealistic watercolor — the detail and lighting of a photo combined with visible watercolor bleeds and paper texture

Criteria: Both styles visually identifiable in result

PASSPASS
reason

The image successfully captures the requested "photorealistic watercolor" style. It combines high-fidelity lighting (the sunbeams and volumetric light through the canopy) with distinct watercolor characteristics, including visible pigment bleeds, soft edges, and a clear paper texture throughout the composition. VERDICT: PASS

FAIL
reason

The image displays soft, blended washes and visible paper texture consistent with watercolor, with light filtering through trees in a photorealistic manner. However, the “watercolor bleeds” are subtle and not distinctly visible; the overall rendering leans more toward a painterly, digitally rendered style rather than true watercolor. The photorealistic lighting and detail are present, but the watercolor medium’s defining characteristics (e.g., bleeding edges, pigment transparency, paper grain) are underemphasized or simulated rather than authentically rendered. The style is not clearly or dominantly recognizable as requested. VERDICT: FAIL

PASS
reason

The image successfully captures the requested hybrid style. It exhibits the soft, diffused lighting and ethereal atmosphere typical of watercolor paintings, with visible paper-like texture throughout the composition. The edges of the foliage and tree trunks show characteristic watercolor bleeds and soft transitions rather than sharp digital lines. Simultaneously, the lighting effects (god rays) and the density of detail in the ferns and bark provide a level of realism that mimics photography. The combination of these elements clearly fulfills the "photorealistic watercolor" prompt. VERDICT: PASS

PASS
reason

The requested style is "photorealistic watercolor," defined by the combination of photo-like detail/lighting with visible watercolor bleeds and paper texture. 1. **Watercolor Characteristics**: The image clearly exhibits watercolor techniques. There are visible "bleeds" where colors soften into one another, particularly in the background foliage and the light rays. The edges of the leaves and tree trunks have that characteristic soft, fluid look of wet-on-wet painting. 2. **Paper Texture**: A distinct paper grain/texture is visible throughout the image, especially in the lighter areas of the sky and the sunlit patches on the ground. This is a key requirement of the prompt. 3. **Photorealistic Detail/Lighting**: The lighting is rendered with a high degree of realism, featuring volumetric god rays and complex interplay of light and shadow that mimics photographic depth. The details in the ferns and moss are intricate, bridging the gap between painterly abstraction and realistic representation. The image successfully blends these elements. It doesn't look like a generic digital painting; it specifically evokes the medium of watercolor while maintaining a realistic atmospheric perspective. VERDICT: PASS

PASS
reason

The image successfully captures the requested "photorealistic watercolor" style. The lighting is rendered with a high degree of realism, featuring distinct sunbeams and atmospheric depth that mimic a photograph. However, this realism is distinctly filtered through a watercolor aesthetic. Visible characteristics include the soft, bleeding edges of the leaves and tree trunks, the granular texture of the "paper" background, and the translucent layering of colors in the foliage. The style is not generic; it specifically blends the subject matter's realism with the medium's texture as requested. VERDICT: PASS

fal/ideogram/v4

Hard

059__fal--ideogram--v4__GraphicalDesign_StyleDiversity_Hard__p1.jpg

A forest rendered in photorealistic watercolor — the detail and lighting of a photo combined with visible watercolor bleeds and paper texture

Criteria: Both styles visually identifiable in result

FAILPASS
reason

The image successfully combines photorealistic lighting and texture with watercolor elements. The central forest scene features high-detail textures (bark, moss, needles) and realistic light rays, while the edges clearly exhibit watercolor characteristics such as pigment bleeds, splatters, and a textured paper-like appearance. VERDICT: PASS

FAIL
reason

The image attempts to blend photorealistic forest detail with watercolor effects, but the watercolor elements are superficial—mostly blotchy, abstract overlays at the edges and corners, lacking the organic bleeds and paper texture that define the style. The core forest scene retains photographic realism, but the watercolor treatment is not integrated meaningfully; it appears as a post-processing filter rather than a unified artistic medium. The requested style is not clearly or convincingly realized. VERDICT: FAIL

PASS
reason

The image successfully combines photorealistic elements (detailed tree bark, realistic lighting, and depth) with distinct watercolor characteristics. The edges of the image feature heavy, dark ink or paint bleeds and splatters that mimic the wet-on-wet technique of watercolor. The background sky and some foreground areas show a paper-like texture and soft, diffused blending typical of the medium. The requested style is clearly recognizable. VERDICT: PASS

PASS
reason

The requested style is "photorealistic watercolor," defined as combining the detail/lighting of a photo with visible watercolor bleeds and paper texture. 1. **Photorealism**: The central portion of the image displays high-fidelity details, realistic lighting (sun rays through trees), and accurate textures (tree bark, moss, pine needles). This satisfies the "detail and lighting of a photo" requirement. 2. **Watercolor Bleeds**: The edges of the image feature distinct, dark, ink-like splatters and washes that fade into the scene. These mimic the bleeding effect of wet watercolor paint on paper. 3. **Paper Texture**: The white areas surrounding the forest scene have a grainy, fibrous appearance consistent with watercolor paper. The way the "paint" interacts with the "paper" at the borders reinforces this texture. The image successfully blends a realistic core with stylized, painterly borders that clearly evoke the requested medium. VERDICT: PASS

PASS
reason

The image successfully combines photorealistic elements with watercolor aesthetics. The forest scene itself—trees, lighting, and moss—is rendered with high detail and realistic lighting, fulfilling the "photorealistic" aspect. Simultaneously, the image features distinct watercolor characteristics: visible ink or paint bleeds around the edges, a textured background resembling paper, and soft, blended color transitions that mimic watercolor washes. The requested style is clearly recognizable and effectively implemented. VERDICT: PASS

gx10/hidream-i1

Hard

061__gx10--hidream-i1__GraphicalDesign_StyleDiversity_Hard__p1.png

A forest rendered in photorealistic watercolor — the detail and lighting of a photo combined with visible watercolor bleeds and paper texture

Criteria: Both styles visually identifiable in result

FAILPASS
reason

The image successfully captures the requested "photorealistic watercolor" style. It features high-quality lighting and depth (photorealistic elements) combined with distinct watercolor characteristics, such as soft color bleeds, painterly textures, and a visible paper-like texture around the edges. The blending of realistic light and organic watercolor textures is clearly recognizable. VERDICT: PASS

FAIL
reason

The image attempts photorealistic lighting and depth, but lacks visible watercolor bleeds or paper texture. The edges are too clean and uniform, and the rendering appears digitally smooth rather than painterly. The “watercolor” aspect is absent, making the requested hybrid style unrecognizable. VERDICT: FAIL

FAIL
reason

The image displays a forest scene with soft, blended edges and a painterly quality that mimics watercolor techniques, particularly in the way the foliage and light diffuse. However, it lacks the specific “visible watercolor bleeds” and “paper texture” explicitly requested in the prompt. The rendering is more akin to digital art or AI-generated illustration with a soft-focus aesthetic rather than true photorealistic watercolor with tactile paper grain and pigment bleed effects. While stylistically evocative, it does not clearly fulfill the technical requirements of the specified style. VERDICT: FAIL

FAIL
reason

The prompt requested a "photorealistic watercolor" style, specifically asking for the detail and lighting of a photo combined with visible watercolor bleeds and paper texture. Looking at the image: - **Lighting and Detail**: The lighting is soft and atmospheric, but lacks the sharp, crisp detail typical of photorealism. It leans more towards digital painting or illustration. - **Watercolor Bleeds**: There are no distinct watercolor bleeds, granulation, or pigment pooling effects visible. The transitions are smooth and digital-looking. - **Paper Texture**: There is no visible paper texture. The edges have a soft, vignette-like fade, but this is not the same as the texture of watercolor paper. The image appears to be a standard digital fantasy illustration or AI-generated art with a soft focus, rather than a specific simulation of watercolor media. The requested stylistic elements (watercolor bleeds, paper texture) are absent. VERDICT: FAIL

PASS
reason

The image successfully captures the requested "photorealistic watercolor" style. The lighting is rendered with a soft, ethereal glow typical of high-quality digital painting or photorealistic interpretation, while the edges of the image feature a distinct, irregular border that mimics the bleed of watercolor paint on paper. The texture within the foliage and the path suggests a painterly application rather than a sharp photograph, fulfilling the requirement for visible watercolor characteristics combined with realistic lighting. VERDICT: PASS

nucleus-local/nucleus-image

Hard

064__nucleus-local--nucleus-image__GraphicalDesign_StyleDiversity_Hard__p1.png

A forest rendered in photorealistic watercolor — the detail and lighting of a photo combined with visible watercolor bleeds and paper texture

Criteria: Both styles visually identifiable in result

FAILPASS
reason

The image successfully captures the requested "photorealistic watercolor" style. It combines the detailed lighting and structural depth of a photograph with clear watercolor characteristics, such as soft pigment bleeds, color washes, and visible paper texture. The edges of the forest transition into splatters and washes, and the central light source creates a realistic sense of depth and atmosphere through a painterly lens. VERDICT: PASS

FAIL
reason

The image displays visible watercolor bleeds, paper texture, and soft, painterly transitions. However, it lacks photorealistic detail and lighting—instead, it has a stylized, impressionistic quality with soft focus and simplified forms. The “photorealistic” component of the prompt is not present, making the requested hybrid style unrecognizable. VERDICT: FAIL

PASS
reason

The image clearly exhibits the requested "photorealistic watercolor" style. Key characteristics are present: 1. **Watercolor Bleeds:** The edges of the trees and foliage show soft, bleeding transitions typical of wet-on-wet watercolor techniques. 2. **Paper Texture:** The background has a visible grain consistent with watercolor paper, and the white space around the image mimics the texture of the sheet. 3. **Splatters:** There are distinct paint splatters around the perimeter, a common stylistic element in watercolor art. 4. **Lighting/Detail:** While stylized, the lighting (sunlight filtering through trees) and the vertical structure of the trees attempt a level of realism within the medium, fitting the "photorealistic" descriptor of the prompt. VERDICT: PASS

FAIL
reason

The requested style is "photorealistic watercolor," defined as combining the detail and lighting of a photo with visible watercolor bleeds and paper texture. 1. **Watercolor Characteristics**: The image clearly displays watercolor techniques. There are visible pigment bleeds, soft edges where colors merge, and distinct splatters around the perimeter. The paper texture is also evident in the background and lighter areas. 2. **Photorealistic Characteristics**: While the subject is a forest, the rendering is not photorealistic. The trees lack the specific, sharp detail and complex lighting nuances of a photograph. Instead, they are stylized with simplified forms and painterly strokes. The lighting is atmospheric and diffuse rather than the crisp, high-fidelity lighting associated with photorealism. 3. **Synthesis**: The prompt asks for a hybrid style where photo-like detail coexists with watercolor effects. This image leans heavily into a traditional or illustrative watercolor style. It lacks the "detail and lighting of a photo" component entirely. It is a beautiful watercolor painting, but it does not fulfill the specific "photorealistic" constraint of the prompt. VERDICT: FAIL

PASS
reason

The image displays a forest scene that effectively combines the requested elements. The lighting and atmospheric depth (the glowing center, the shadows on the trunks) provide a sense of realism akin to a photograph. Simultaneously, the texture of the paper is visible in the background, and the edges of the trees and foliage exhibit characteristic watercolor behaviors such as bleeding, soft edges, and pigment pooling. The style is distinct and clearly recognizable as a photorealistic watercolor. VERDICT: PASS

z-image-local/z-image-turbo

Hard

068__z-image-local--z-image-turbo__GraphicalDesign_StyleDiversity_Hard__p1.png

A forest rendered in photorealistic watercolor — the detail and lighting of a photo combined with visible watercolor bleeds and paper texture

Criteria: Both styles visually identifiable in result

PASSPASS
reason

The image successfully captures the "photorealistic watercolor" style. It combines high-detail rendering of the tree bark and foliage with clear watercolor characteristics, such as soft color bleeds, translucent washes, and a visible paper texture. The lighting and depth suggest a photographic quality, while the medium-specific textures (water blooms and pigment pooling) are clearly present. VERDICT: PASS

FAIL
reason

The image clearly exhibits watercolor characteristics: visible bleeds, soft gradients, and paper texture. However, it lacks photorealistic detail and lighting—instead, it has painterly, impressionistic rendering with softened edges and stylized forms. The prompt explicitly requested a fusion of photographic realism with watercolor, which is not achieved here. The style is watercolor, but not “photorealistic watercolor” as requested. VERDICT: FAIL

PASS
reason

The image clearly exhibits the requested "photorealistic watercolor" style. Key characteristics are present: 1. **Watercolor Bleeds:** The edges of the trees and foliage show soft, irregular boundaries where pigments have bled into the paper, typical of wet-on-wet watercolor techniques. 2. **Paper Texture:** There is a visible grain and texture consistent with watercolor paper, especially noticeable in the lighter areas and the white margins. 3. **Lighting and Detail:** Despite the medium, the image maintains a sense of realistic lighting (dappled sunlight filtering through the canopy) and structural detail in the tree bark and leaves, fulfilling the "photorealistic" aspect of the prompt. VERDICT: PASS

FAIL
reason

The requested style is "photorealistic watercolor," which requires a blend of high-fidelity detail/lighting (like a photo) with visible watercolor characteristics (bleeds, paper texture). The image clearly exhibits the watercolor characteristics: - Visible paper texture and deckled edges. - Watercolor bleeds, washes, and pigment pooling are evident, especially in the foliage and tree trunks. - The brushwork is loose and expressive, typical of watercolor. However, the "photorealistic" aspect is weak. The details are impressionistic rather than sharp or photo-like. The lighting is soft and diffuse, lacking the crisp, high-contrast realism usually associated with "photorealistic." The trees and undergrowth are rendered with broad strokes and simplified forms, not the fine, precise detail expected from a photorealistic rendering. While it’s a beautiful watercolor, it doesn’t convincingly merge photo-level detail with the medium. The style leans heavily toward traditional watercolor illustration rather than a hybrid photorealistic watercolor. VERDICT: FAIL

PASS
reason

The image successfully captures the requested "photorealistic watercolor" style. The lighting is rendered with a soft, luminous quality typical of high-quality watercolor illustrations, particularly in the way sunlight filters through the canopy. The texture of the paper is visible in the background and margins, and the characteristic "bleeds" of the pigment—where colors run into one another to form soft edges—are evident in the foliage and tree trunks. The detail is rich enough to be considered realistic within the medium, fulfilling the prompt's requirement for a blend of photo-like detail and watercolor techniques. VERDICT: PASS

nucleus-local/nucleus-image

Extreme

089__nucleus-local--nucleus-image__GraphicalDesign_StyleDiversity_Extreme__p1.png

An interior scene rendered in soft brutalism — raw concrete textures combined with rounded pastel furniture and warm diffused light

Criteria: Result evokes the described feeling/contradiction

PASSPASS
reason

The image captures the requested "soft brutalism" style effectively. It features the core elements of raw, heavy architectural forms (the large blocky structures) combined with the "soft" aesthetic through the use of rounded edges, a pastel color palette (pink, mint, yellow), and warm, diffused lighting. The textures appear smooth and matte rather than harsh, successfully blending the brutalist structure with a soft, inviting aesthetic. VERDICT: PASS

FAIL
reason

The prompt requested “soft brutalism” — raw concrete textures combined with rounded pastel furniture and warm diffused light. The image shows pastel-colored, rounded geometric forms (furniture-like blocks) and a clean, minimalist interior. However, there is no visible raw concrete texture; surfaces are uniformly smooth and painted. The lighting is soft and diffused, which matches, but the “brutalist” element — characterized by exposed raw materials, industrial forms, and rough textures — is entirely absent. The style is more aligned with minimalist or pastel surrealism, not soft brutalism. VERDICT: FAIL

FAIL
reason

The image displays a minimalist interior with pastel colors and rounded furniture, which aligns partially with the prompt. However, the key element of "soft brutalism" — specifically the "raw concrete textures" — is missing. The surfaces appear smooth, matte, and synthetic (like painted foam or plastic) rather than textured concrete. The lighting is also quite flat and even, lacking the specific "warm diffused light" atmosphere that would enhance the brutalist feel. While it captures the color palette and shapes, it fails to render the requested material texture and specific stylistic genre accurately. VERDICT: FAIL

PASS
reason

The requested style is "soft brutalism," defined in the prompt as "raw concrete textures combined with rounded pastel furniture and warm diffused light." 1. **Rounded pastel furniture**: The image clearly features large, rounded geometric shapes in pastel pink, yellow, and mint green. This matches the prompt perfectly. 2. **Warm diffused light**: The lighting is soft, creating gentle shadows and a warm atmosphere, consistent with the prompt. 3. **Raw concrete textures**: The surfaces in the image appear smooth, matte, and painted (likely plaster or drywall), lacking the rough, exposed, or "raw" texture characteristic of brutalist concrete. However, "soft brutalism" is a specific aesthetic trend that often softens the harshness of traditional brutalism by using pastel colors and smoother finishes while retaining the geometric massing. The image captures the *spirit* and visual language of this specific sub-style (pastel brutalism/soft brutalism) very well, even if the literal "raw concrete" texture is stylized into a smoother finish common in this genre. The key visual characteristics of the *style* (geometric forms, pastel palette, specific lighting) are clearly recognizable. VERDICT: PASS

PASS
reason

The image clearly depicts an interior scene that aligns with the requested "soft brutalism" style. It features large, blocky geometric forms reminiscent of brutalist architecture but rendered in smooth, matte pastel colors (pink, yellow, mint green) rather than raw, exposed concrete. The lighting is soft and diffused, creating gentle shadows that enhance the "soft" aspect of the style. While the texture is smoother than raw concrete, the overall aesthetic of rounded pastel furniture and warm, diffused light within a geometric architectural space is accurately represented. VERDICT: PASS