照片转超写实黏土半身像

使用上传的照片作为唯一身份参照。将人物转化为超写实的手工塑形黏土（油泥）半身雕塑。

主体
- 仅制作半身像：头部 + 颈部 + 上肩部（不含全身）。
- 确保人物清晰可辨：保持原始面部比例、眼睛、鼻子、嘴唇、下颌线、发型。
- 保留原始面部表情及上传照片中近似的角度（头部朝向）。
- 不进行美化处理，不改变年龄。

真实黏土材质（必须呈现物理实体感）
- 必须看起来像真实的塑形黏土，而非 CGI 渲染、瓷质或蜡质效果。
- 展现微妙的手工真实感：隐约可见的指纹、细微的工具刻痕、柔和的擦痕、轻微的压痕、黏土部件拼接处的细微接缝线。
- 添加逼真的黏土表面特性：哑光—微蜡质感、微观纹理、细小尘粒、局部厚度不均。

雕刻细节
- 发型：以黏土塑造出具有可信方向性与体积感的发丝/发簇，排列略带不完美。
- 肤色：呈现分层黏土观感，带有精细的微观纹理（非喷枪式平滑处理）。
- 眼睛：用黏土手工制作的眼睛（非高光泽写实眼球）。若采用分件制作，需展现细微的拼接线。
- 嘴唇与鼻子：柔软黏土过渡效果，具备真实手工边缘。

色彩与饰面
- 皮肤与嘴唇采用天然黏土色系；头发亦为黏土材质（非真实毛发）。
- 若经上色，须呈现手绘效果：颜料存在轻微色差、可见柔和笔触纹理、细小瑕疵。
- 除上传照片中明确存在的配饰外，不得添加任何额外配饰。

摄影风格（使其呈现真实产品摄影效果）
- 实体雕塑的影棚产品照：具备真实 85mm 镜头视觉效果，自然景深。
- 主光源为前左方柔和漫射光 + 微弱轮廓光，阴影干净柔和。
- 中性无缝背景：纯浅米白或浅灰色。
- 添加真实接触阴影及细微的桌面表面纹理。

构图与画质
- 居中构图，胸像取景（chest-up framing），画面边缘整洁。
- 面部特征区域超锐利对焦，高分辨率，材质表现真实。

负面约束（禁止项）
- 不得采用卡通/动漫风格。
- 不得呈现 3D 渲染观感、塑料玩具感、瓷质感或蜡像馆皮肤质感。
- 不得含文字、标志或水印。

Use the uploaded photo as the only identity reference. Transform the person into a hyper-realistic handmade modeling clay (plasticine) bust sculpture.

SUBJECT
- Create a bust only: head + neck + upper shoulders (no full body).
- Keep the person clearly recognizable: same facial proportions, eyes, nose, lips, jawline, hairstyle.
- Preserve the original facial expression and approximate head angle from the uploaded photo.
- No beautification, no age change.

REAL CLAY MATERIAL (MUST LOOK PHYSICAL)
- Must look like real modeling clay, not CGI, not porcelain, not wax.
- Show subtle hand-made realism: faint fingerprints, tiny tool marks, soft smudges, gentle dents, slight seam lines where clay pieces meet.
- Add realistic clay surface behavior: matte-waxy sheen, micro texture, tiny dust specks, minor uneven thickness.

SCULPTING DETAILS
- Hair: sculpted clay strands/clumps with believable direction and volume, slightly imperfect alignment.
- Skin: layered clay look with fine micro texture (not airbrushed smooth).
- Eyes: clay-crafted eyes (not glossy realistic eyeballs). If separate pieces are used, show tiny join lines.
- Lips and nose: soft clay transitions, realistic handmade edges.

COLOR & FINISH
- Natural clay color palette for skin and lips; hair as clay (not real hair).
- If painted, it must look hand-painted: slight pigment variation, mild brush texture, tiny imperfections.
- No extra accessories unless clearly present in the uploaded photo.

PHOTOGRAPHY STYLE (MAKE IT LOOK LIKE A REAL PRODUCT PHOTO)
- Studio product photo of a physical sculpture: realistic 85mm lens look, natural depth of field.
- Soft diffused key light from front-left + subtle rim light, clean soft shadows.
- Neutral seamless background: solid off-white or light gray.
- Add a realistic contact shadow and a subtle tabletop surface texture.

COMPOSITION & QUALITY
- Centered composition, chest-up framing, clean margins.
- Ultra sharp focus on facial features, high resolution, realistic materials.

NEGATIVE CONSTRAINTS
- No cartoon/anime style.
- No 3D render look, no plastic toy look, no porcelain, no wax museum skin.
- No text, no logos, no watermark.