Nano Banana Pro

Hyper-Detailed Biometric and Attire Analysis

An extremely detailed, structured JSON prompt for Nano Banana Pro, designed to generate an image based on minute physical and environmental observations, including biometric anchors, dermatological maps, hair strand analysis, and precise fa

Prompt text

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{
  "meta_data": {
    "calculated_aspect_ratio": "--ar {argument name="aspect ratio" default="4:5"}",
    "crop_tightness": "Waist-up portrait, subject seated",
    "image_fidelity": "Moderate grain visible in shadow areas, soft focus typical of front-facing smartphone camera indoors"
  },
  "subject_mapping": {
    "biometric_anchors": {
      "apparent_age_precise": "{argument name="age" default="Late teens to early 20s"}",
      "ethnicity_specifics": "Fair to light tan skin tone with warm undertones; freckling present on nose bridge and cheeks",
      "body_mass_distribution": "Slender build, prominent clavicles visible, soft tissue distribution on upper arms consistent with relaxed posture"
    },
    "face_inventory": {
      "asymmetry_notes": "Subject's head tilted slightly to their right. Subject's right eyebrow (viewer's left) appears slightly lower than the left. Upper lip peak slightly sharper on subject's right side.",
      "dermatological_map": [
        "Cluster of light freckles across the bridge of the nose and extending to upper cheeks",
        "Slight redness/flushing on cheeks and nose tip",
        "Smooth texture on forehead with high reflectivity"
      ],
      "eye_details_precise": "Light green/hazel irises. Catchlights present in the upper-right quadrant (viewer's perspective) of both pupils. Dark, defined lash line, possibly mascara.",
      "mouth_state_precise": "Lips parted approximately 3-5mm. Upper central incisors visible. Lower lip full with glossy finish reflecting light centrally."
    },
    "hair_strand_analysis": {
      "root_status": "Uniform dark brown/black at roots, consistent with ends (no visible regrowth line).",
      "chaos_inventory": "Micro-bangs (baby bangs) cut bluntly above eyebrows. Several stray hairs (flyaways) projecting from the crown against the beige wall. Strands curving inward to touch the jawline on both sides.",
      "contact_points": "Hair rests on the back of the neck and drapes over the top of the couch cushions behind the head."
    },
    "torso_mechanics": {
      "posture_gravity_effect": "Subject is leaning back into a soft surface (couch), causing slight rounding of shoulders forward. Neck slightly compressed due to backward lean.",
      "chest_topography": "Fabric stretched taut across the bust line. Soft gradient shadows indicate contour. No deep cleavage visible due to high crew-neck cut.",
      "skin_surface_inventory": "Prominent suprasternal notch (hollow of throat). Smooth skin texture on exposed arms and chest."
    }
  },
  "attire_inventory_and_physics": {
    "layer_1_top": {
      "item_identity": "White 'baby tee' (cropped t-shirt) with text",
      "material_weave": "Cotton or cotton-blend jersey, lightweight, slightly semi-sheer",
      "stress_and_fold_mapping": [
        "Horizontal tension wrinkles pulling from armpits across the upper chest",
        "Diagonal folding on the subject's right side torso due to arm movement/pointing",
        "Fabric bunching s

Source & attribution

Quality Control · Awesome Nano Banana Pro Prompts

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