伊斯坦布尔雪景下的电影级写实街头浪漫

{
  "generation_request": {
    "meta_data": {
      "tool": "NanoBanana Pro",
      "task_type": "photoreal_candid_street_romance",
      "version": "v1.3_ISTANBUL_SNOW_SNOWMAN_LOVE_EN",
      "priority": "highest"
    },

    "output_settings": {
      "aspect_ratio": "4:5",
      "orientation": "portrait",
      "resolution_target": "ultra_high_res",
      "render_style": "ultra_photoreal_candid_street_film_still",
      "sharpness": "crisp_but_natural",
      "film_grain": "subtle_35mm",
      "color_grade": "true_to_life_winter_natural",
      "dynamic_range": "natural_not_hdr",
      "skin_rendering": "real_texture_no_retouch"
    },

    "global_rules": {
      "camera_language": "35mm lens equivalent, eye-level, imperfect framing, candid documentary feel, focus on eyes when people are present",
      "authenticity_markers": "subtle halation on snow highlights, tiny film gate weave, slight background motion blur only, real winter street texture, no studio look",
      "lighting_language": "motivated natural light only (overcast snowy daylight), deep but detailed shadows"
    },

    "creative_prompt": {
      "scene_summary": "{argument name="scene summary" default="Istanbul during a snowy day. A young couple in their early 20s builds a snowman together while snow continues to fall. A quiet, candid moment of shared joy—love without performance."}",

      "subjects": {
        "count": 2,
        "description": "the same young man and woman (early 20s), university students, ordinary and real, not model-like; faces visible and eyes sharp",
        "expression": "soft laughter, concentration, shy happiness; restrained and natural",
        "skin_and_face": "natural skin texture, slightly reddened cheeks from cold, no beauty retouch, no plastic skin"
      },

      "wardrobe_and_props": {
        "female": "simple winter coat in neutral tone, scarf loosely wrapped, gloves slightly wet from snow, long hair partially tucked into coat",
        "male": "dark winter jacket, knit sweater underneath, simple jeans, gloves in hand or worn",
        "props": "partially built snowman between them, snow clinging to sleeves and hair"
      },

      "micro_action": "they roll snow together, hands brushing accidentally; one adjusts the snowman’s head while the other laughs; snowflakes collect on shoulders and eyelashes",

      "environment_details": {
        "location": "Istanbul neighborhood street or park ({argument name="location vibe" default="Moda / Kuzguncuk / university surroundings vibe"})",
        "background": "old apartment facades dusted with snow, parked cars lightly covered, bare tree branches, a few distant passersby softly blurred",
        "ground_details": "fresh snow underfoot, uneven footprints, slushy edges near the pavement"
      },

      "lighting": "soft overcast winter daylight, diffused by snowfall; gentle contrast; subtle halation on bright snow surfaces",

      "composition": "eye-level medium shot, slightly off-center framing, imperfect crop like real street ph"
    }
  }
}