Luxury Low-Light Fashion Portrait Prompt with Strict Identity Lock in JSON

A highly structured JSON prompt for Nano Banana Pro designed to generate a 3/4 body fashion portrait in a dim luxury hallway. The prompt enforces 100% facial identity consistency based on a reference photo and details complex attire (strapless top, low-rise briefs, body chains, sheer patterned tights, and an oversized fur coat) using cinematic low-light realism.

Prompt

{
  "image_request": {
    "subject": {
      "type": "Adult female model",
      "identity_constraint": "Use the provided photo exactly — DO NOT alter facial structure, proportions, or features in any way (100% identical face)",
      "expression": "Calm, confident, sensual",
      "gaze": "Eyes softly lowered",
      "emotion": "Elegant, after-hours luxury"
    },

    "pose_and_framing": {
      "pose": "Standing, leaning against a wall",
      "arm_position": "One arm raised above head with palm on wall; other hand resting low on the hip",
      "body_angle": "Slight angle with subtle hip shift",
      "head_position": "Gently tilted downward",
      "framing": "3/4 body (head to upper thighs)",
      "composition": "Vertical 3:4"
    },

    "outfit_and_layers": {
      "top": {
        "type": "Strapless bandeau tube top",
        "color": "Black",
        "length": "Very short cropped, ending well above the waist, exposing midriff",
        "design": "Shallow sweetheart dip at center with tight center-front ruching",
        "fabric": "Smooth matte, lightly stretched",
        "structure": "No boning, no cups, no vertical seams, no corset structure"
      },
      "bottoms": {
        "type": "Ultra-low-rise fashion briefs",
        "color": "Black",
        "fit": "Very low on hips, high-cut leg line",
        "waistband": "Slim and clean"
      },
      "body_jewelry": {
        "type": "Fine metallic body chains",
        "placement": "Layered asymmetrically around waist and hips, crossing slightly at the front",
        "interaction": "Resting on bare skin above the bottoms"
      },
      "hosiery": {
        "type": "Sheer black patterned tights",
        "pattern": "Luxury monogram-style motif"
      },
      "outerwear": {
        "type": "Oversized plush fur coat",
        "color": "{argument name="coat color" default="Light cream-beige"}",
        "style": "Worn open, draped off the shoulders",
        "texture": "Voluminous, soft, realistic fur with heavy folds"
      }
    },

    "hair_and_makeup": {
      "hair": {
        "style": "Soft curly updo",
        "details": "Loose face-framing tendrils, slightly undone with natural flyaways"
      },
      "makeup": {
        "eyes": "Neutral smoky eyes with soft depth, clean eyeliner, fluttery lashes",
        "cheeks": "Subtle contour with warm blush",
        "lips": "Nude-pink with soft satin sheen",
        "skin": "Natural texture with visible pores and gentle highlights"
      }
    },

    "environment": {
      "location": "Dim luxury hallway",
      "lighting_sources": "Warm tungsten ceiling lights",
      "background_effect": "Soft golden bokeh in the distance",
      "atmosphere": "Cinematic, intimate, after-hours fashion mood"
    },

    "lighting": {
      "style": "Cinematic low-light realism",
      "tone": "Warm golden highlights with deep shadows",
      "focus": "Face and outfit textures well-lit, background softly blurred"
    },

    "camera_and_style": {
      "le