Photorealistic Anatomy-Locked Mirror Selfie Prompt

{
  "metadata": {
    "engine": "PX-LOCK-X",
    "prompt_version": "1.0.0",
    "generation_goal": "Photorealistic mirror-selfie recreation with zero drift across pose, anatomy, environment, lighting, and wardrobe",
    "determinism": {
      "pose_lock": true,
      "camera_lock": true,
      "composition_lock": true,
      "anatomy_lock": true,
      "environment_lock": true,
      "lighting_lock": true,
      "wardrobe_lock": true,
      "texture_lock": true,
      "deviation_tolerance": {
        "keypoint_px_at_4k": 6,
        "silhouette_iou_min": 0.94,
        "camera_shift_max_norm": 0.006
      }
    },
    "output_quality": {
      "resolution": "4K",
      "focus": "tack-sharp",
      "noise": "minimal"
    }
  },
  "subject": {
    "identity": {
      "gender": "male",
      "age_range": "early 30s",
      "ethnicity": "Afro-Caribbean",
      "height_estimate_ft_in": "6'1\""
    },
    "face": {
      "shape": "rectangular",
      "jawline": "broad, powerful",
      "cheekbones": "moderately high",
      "eyes": {
        "color": "dark brown",
        "gaze": "direct at phone",
        "openness": "relaxed, half-open",
        "expression": "calm, confident"
      },
      "nose": "straight with wide bridge",
      "lips": {
        "shape": "medium-full",
        "parting": "slightly parted"
      },
      "hair": {
        "style": "fully shaved head",
        "scalp_finish": "clean razor shave",
        "detail_lock": true
      },
      "facial_hair": {
        "type": "full beard",
        "length": "short boxed",
        "density": "thick",
        "grooming": "clean lines along cheeks and neckline"
      },
      "accessories": "none"
    },
    "skin": {
      "tone": "deep warm brown",
      "texture": "natural with subtle post-shower sheen",
      "body_hair": {
        "chest": "light, sparse",
        "abs": "minimal"
      },
      "moisture": "slightly damp"
    },
    "physique": {
      "build": "highly muscular athletic-bodybuilder hybrid",
      "proportions_inches": {
        "chest": 50,
        "waist": 33,
        "hips": 44
      },
      "upper_body": {
        "shoulders": "extremely broad",
        "neck": "thick and powerful",
        "pectorals": "dense, rounded",
        "deltoids": "deeply striated",
        "arms": "large with prominent vascularity",
        "triceps": "horseshoe-shaped definition"
      },
      "core": {
        "abs": "thick six-pack with deep separations",
        "obliques": "clearly carved",
        "adonis_belt": "strongly visible"
      },
      "lower_body": {
        "quadriceps": "thick and defined beneath towel",
        "fat_level": "very low"
      },
      "advanced_anatomy": {
        "thoracic_depth_in": 9.5,
        "waist_depth_in": 5.2,
        "hip_depth_in": 7.5
      },
      "symmetry": "high bilateral balance in muscle mass and vascularity"
    }
  },
  "pose": {
    "stance": "standing frontally",
    "orientation": "square to mirr