Photorealistic Cinematic Street Romance in Istanbul Snow

Prompt

{   "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": {         "l...