The Dark Godfather Structural Portrait

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[GPT-image2 Structural Prompt: The Dark Godfather]

### 1. Identity Transformation (核心人像迁移)
- Base Identity: Take the facial structure from [Reference Image].
- Modifications: Age the face by 30 years, adding deep-seated wisdom lines and weathered, leathery skin texture. Maintain the stoic, unshakable gaze of a high-status leader.

### 2. Lighting Architecture (顶光与阴影结构 - 关键)
- Light Source: A single, harsh Vertical Top-Lighting (垂直顶光) from directly overhead. 
- Shadow Mapping: This lighting must create cavernous shadows in the eye sockets, making the eyes almost invisible in mystery. It should cast a sharp, long shadow under the nose and chin, highlighting the skull's bone structure for a "silent authority" look.
- Style: Extreme Chiaroscuro (明暗对照). 70% of the face must be submerged in absolute velvet blackness.

### 3. Scene & Composition (场景与构图)
- Subject: The man is seated in a classic high-backed black leather chair. He is slowly and rhythmically stroking a dark, sleek cat on his lap.
- Foreground: Focus on the contrast between the weathered, powerful hand and the soft fur of the cat.
- Background: A pitch-black, minimalist study. Only a faint, out-of-focus silhouette of a mahogany desk is visible.
- Camera: 85mm lens, f/1.8, medium shot, slight low-angle perspective.

### 4. Color & Texture (色彩与质感)
- Palette: Desaturated color grading. Deep tobacco browns, obsidian blacks, and sharp amber highlights (#B08D6A / #1A120B).
- Texture: 35mm film grain, Subsurface Scattering (SSS) for realistic skin highlights, PBR texture mapping (no plastic feel).

### 5. Negative Constraints (负面约束)
- NO smiling, NO looking at the camera directly, NO youthful skin, NO flat lighting, NO bright backgrounds, NO vibrant colors, NO digital smoothness.