Nano Banana 提示词作品

{
  "style": "ultra photorealistic beauty portrait",
  "aspect_ratio": "9:16",
  "resolution": "8k RAW",

  "reference_rules": {
    "use_reference_face": true,
    "preserve_face_exactly": true,
    "keep_hair_color_same": true,
    "do_not_change_eye_color": true,
    "no_text_elements": true
  },

  "composition": {
    "framing": "tight upper body portrait",
    "camera_angle": "slightly above eye level",
    "crop": "head and shoulders with partial arm visible",
    "background": "clean soft beige studio backdrop"
  },

  "subject": {
    "pose": {
      "position": "leaning slightly forward",
      "right_hand": "supporting face under cheek",
      "left_arm": "resting naturally in front",
      "head": "slightly tilted toward hand",
      "shoulders": "relaxed and slightly angled"
    },

    "expression": {
      "type": "soft natural beauty expression",
      "lips": "slightly parted, relaxed",
      "eyes": "calm and direct gaze toward camera"
    },

    "appearance": {
      "skin": {
        "texture": "highly detailed natural skin",
        "features": [
          "visible freckles",
          "fine pores",
          "subtle natural glow"
        ],
        "finish": "soft satin skin, not glossy"
      },

      "hair": {
        "style": "voluminous natural waves",
        "placement": [
          "swept to one side",
          "falling over shoulder",
          "slightly messy natural strands"
        ],
        "color": "same as reference image",
        "detail": "individual hair strands visible"
      },

      "eyes": {
        "color": "same as reference image",
        "detail": "sharp iris detail with natural catchlight"
      },

      "makeup": {
        "style": "natural editorial",
        "details": [
          "light peach blush",
          "soft eyeshadow",
          "defined lashes",
          "natural pink lips"
        ]
      }
    },

    "outfit": {
      "type": "strapless sequined top",
      "details": [
        "multicolor subtle shimmer",
        "dark base tones",
        "soft reflections from studio light"
      ]
    },

    "accessories": {
      "jewelry": [
        "thin metallic bracelets on wrist",
        "minimal ring"
      ]
    }
  },

  "lighting": {
    "type": "soft beauty studio lighting",

    "setup": [
      "large softbox front slightly above",
      "fill light from opposite side",
      "subtle reflector under face"
    ],

    "direction": "top-front soft angle",

    "quality": {
      "shadows": "very soft under chin and hand",
      "highlights": "gentle on cheekbones and forehead",
      "contrast": "low, smooth gradient"
    },

    "color_temperature": "neutral warm (4800K–5200K)",

    "effects": [
      "soft skin glow",
      "natural catchlight in eyes",
      "smooth tonal transitions",
      "no harsh edges"
    ]
  },

  "camera": {
    "lens": "85mm portrait lens",
    "aperture": "f/2.0",
    "focus": "sharp on eyes",
    "depth_of_field": "shallow background blur",

    "exposure": {
      "balanced_skin_tones": true,
      "no_highlight_clipping": true,
      "soft_dynamic_range": true
    }
  },

  "color_processing": {
    "style": "editorial beauty",
    "tones": "soft warm neutrals",
    "skin": "natural with slight warmth",
    "overall": "clean, minimal grading"
  },

  "realism_constraints": {
    "must_have": [
      "freckle detail visible",
      "realistic skin texture",
      "natural hair strands",
      "soft studio gradients",
      "sharp eye focus"
    ],

    "avoid": [
      "plastic skin",
      "over-smoothing",
      "harsh shadows",
      "over-saturation",
      "AI artifacts"
    ]
  }
}