都市天台：时尚人像特写

{
  "identity_reference": {
    "source": "uploaded reference photo",
    "lock_identity": true,
    "rules": [
      "Preserve face exactly as reference",
      "Accurate face shape, structure, skin tone, hairstyle, and natural expression",
      "No facial alteration, distortion, reshaping, smoothing, or identity drift"
    ]
  },
  "scene": {
    "type": "Photorealistic cinematic urban fashion portrait",
    "pose": "Seated on the edge of a concrete rooftop ledge",
    "camera_angle": "Strong low-angle, below waist level, angled upward",
    "expression": "Grounded and confident",
    "foreground_emphasis": "Black leather lace-up combat boots dominating the foreground with exaggerated wide-angle depth",
    "anatomy_constraints": [
      "No exposed groin or crotch visibility",
      "No revealing or voyeuristic angles",
      "Natural, modest leg positioning",
      "Camera framing must avoid groin exposure"
    ]
  },
  "outfit": {
    "lock_outfit": true,
    "items": [
      "Teal cropped trousers",
      "Black leather lace-up combat boots with thick soles",
      "Fitted dusty-rose long-sleeve top",
      "Patterned neck scarf"
    ],
    "rules": [
      "No substitutions",
      "No recoloring",
      "No resizing",
      "No stylistic alterations"
    ]
  },
  "camera": {
    "body": "Full-frame DSLR / mirrorless",
    "lens": "24mm wide-angle prime",
    "aperture": "f/2.8",
    "focus": "Face and foreground boot in sharp focus",
    "depth_of_field": "Shallow cinematic falloff",
    "perspective": "Exaggerated wide-angle foreground emphasis",
    "shooting_height": "Low, near ground level",
    "framing_rules": [
      "Controlled lower-body framing",
      "Avoid extreme upskirt or crotch-facing compositions"
    ]
  },
  "lighting": {
    "type": "Natural daylight",
    "quality": [
      "Bright but diffused sky",
      "Soft directional light",
      "No harsh shadows"
    ]
  },
  "background": {
    "setting": "Modern city skyline",
    "details": [
      "High-rise buildings",
      "Clean architectural lines",
      "Softly blurred"
    ]
  },
  "color_grading": {
    "style": "Muted cinematic",
    "palette": [
      "Cool teal shadows",
      "Warm natural skin tones",
      "Desaturated highlights"
    ],
    "finish": [
      "Subtle film grain",
      "High dynamic range"
    ]
  },
  "style": {
    "genre": "Editorial fashion photography",
    "mood": "Modern urban",
    "realism": [
      "Accurate anatomy",
      "Natural body proportions",
      "Realistic textures"
    ]
  },
  "negative_prompt": [
    "cartoon",
    "illustration",
    "CGI",
    "3D render",
    "painterly style",
    "plastic or over-smoothed skin",
    "facial distortion or identity drift",
    "distorted limbs or proportions",
    "warped perspective",
    "exposed groin or visible crotch",
    "revealing angles",
    "outfit or color changes",
    "neon lighting",
    "harsh contrast",
    "fantasy elements",
    "low realism"
  ]
}