Nano Banana 提示词作品

{
  "image_metadata": {
    "style": "hyper-realistic smartphone photography",
    "aspect_ratio": "4:5 vertical",
    "resolution": "high resolution with subtle smartphone compression",
    "camera": {
      "device": "modern smartphone",
      "lens": "wide-angle (~24mm equivalent)",
      "angle": "slightly low, close perspective",
      "framing": "full body seated portrait with strong foreground emphasis on legs and feet",
      "focus": "sharp on face and foreground feet, mild background softness"
    }
  },
  "subject": {
    "use_reference_image": true,
    "override": false,
    "pose": {
      "position": "seated deep into a cushioned armchair",
      "torso": "slightly reclined into the backrest",
      "legs": "both legs lifted and bent upward toward camera, creating strong foreshortening",
      "arms": "wrapped casually around shins, holding legs in place",
      "hips_and_glutes": {
        "visibility": "partially visible",
        "description": "subtle outline visible due to seated compression against chair cushion; fabric slightly stretched and creased around hip area",
        "interaction_with_chair": "pressed into seat, creating natural flattening and fabric tension"
      },
      "feet": {
        "position": "dominant foreground element, closest to lens",
        "orientation": "soles facing camera at slight angles",
        "detail": "natural skin texture, visible creases, relaxed toes"
      }
    },
    "face": {
      "expression": "neutral, slightly serious/pensive",
      "gaze": "direct eye contact with camera"
    }
  },
  "clothing": {
    "type": "casual loungewear set",
    "top": {
      "item": "sweatshirt",
      "color": "light grey",
      "fit": "loose, slightly oversized",
      "fabric_behavior": "soft folds around torso and arms"
    },
    "bottom": {
      "item": "jogger sweatpants",
      "color": "light grey",
      "fit": "relaxed but slightly fitted around hips and thighs",
      "details": "elastic ankle cuffs, visible creases from bent legs and seated compression"
    }
  },
  "environment": {
    "setting": "indoor, calm living space",
    "chair": {
      "type": "armchair",
      "material": "brown leather",
      "texture": "soft, slightly worn with natural creases",
      "design": "rounded backrest with stitched geometric/sunburst pattern"
    },
    "background": {
      "curtains": {
        "color": "beige",
        "material": "heavy fabric",
        "style": "full-length, softly draped"
      },
      "floor": {
        "type": "light patterned rug",
        "visibility": "partially visible at bottom edge"
      }
    }
  },
  "lighting": {
    "type": "natural daylight",
    "source": "window from side/front",
    "quality": "soft and diffused",
    "shadow_behavior": "gentle shadows, no harsh contrast",
    "tone": "warm-neutral"
  },
  "composition": {
    "perspective": "strong foreshortening due to legs extending toward camera",
    "focus_hierarchy": [
      "feet in foreground",
      "face and expression",
      "body posture including seated compression"
    ],
    "framing": "subject centered within chair",
    "mood": "intimate, relaxed, candid"
  },
  "color_palette": {
    "dominant": ["light grey", "warm brown", "beige"],
    "secondary": ["neutral tones"],
    "style": "muted, soft, warm"
  },
  "post_processing": {
    "editing": "minimal, natural",
    "contrast": "low to medium",
    "saturation": "slightly muted",
    "skin_retention": "realistic texture preserved"
  }
}