"generation request": {

{
  "generation_request": {
    "meta_data": {
      "tool": "NanoBanana Pro",
      "task_type": "photoreal_cinematic_fashion_contact_sheet",
      "version": "v1.0_RED_DRESS_INTIMATE_EDITORIAL_3x3_NO_TEXT",
      "priority": "highest"
    },

    "references": {
      "reference_image_1": {
        "source": "UPLOAD_REFERENCE_IMAGE (OPTIONAL)",
        "purpose": "FACE_IDENTITY_LOCK",
        "strict_lock": true,
        "face_similarity_priority": "MAX",
        "no_identity_blending": true,
        "no_beautify": true,
        "preserve_skin_texture": true,
        "preserve_facial_proportions": true
      }
    },

    "output_settings": {
      "aspect_ratio": "1:1",
      "resolution_target": "ultra_high_res",
      "render_style": "cinematic_fashion_editorial",
      "sharpness": "soft_cinematic_focus",
      "film_grain": "subtle_analog_35mm",
      "dynamic_range": "natural_not_hdr",
      "color_grade": "muted_warm_reds_dark_neutrals",
      "skin_rendering": "real_skin_microtexture_no_plastic"
    },

    "layout": {
      "type": "contact_sheet",
      "grid": "3x3",
      "spacing": "thin_clean_dividers",
      "pan

...