Joyful Moments with Heart Balloons

{
  "generation_request": {
    "meta_data": {
      "tool": "NanoBanana Pro",
      "task_type": "photoreal_outdoor_portrait_heart_balloons_flash_candid",
      "version": "v1.0_HEART_BALLOONS_PARK_FLASH_CANDID_FACELOCK_EN",
      "priority": "highest",
      "language": "en"
    },
    "references": {
      "reference_image_face": {
        "source": "UPLOAD_REFERENCE_IMAGE (REQUIRED)",
        "purpose": "FACE_IDENTITY_LOCK",
        "strict_lock": true,
        "face_similarity_priority": "MAX",
        "no_identity_blending": true,
        "no_beautify": true,
        "no_age_shift": true,
        "preserve_skin_texture": true,
        "preserve_facial_proportions": true,
        "preserve_moles_freckles_scars": true,
        "preserve_eye_shape": true,
        "preserve_nose_shape": true,
        "preserve_lip_shape": true,
        "preserve_jawline": true
      },
      "reference_image_style": {
        "source": "UPLOAD_REFERENCE_IMAGE (OPTIONAL)",
        "purpose": "STYLE_LIGHTING_COMPOSITION_ANCHOR",
        "strict_lock": false,
        "preserve_vibe": true,
        "preserve_palette": true,
        "preserve_lighting": true,
        "preserve_composition": true
      }
    },
    "global_constraints": {
      "rating": "PG-13",
      "no_nudity": true,
      "no_explicit_sexual_content": true,
      "no_logos": true,
      "no_watermark": true,
      "no_readable_text": true
    },
    "output_settings": {
      "aspect_ratio": "4:5",
      "orientation": "portrait",
      "resolution_target": "ultra_high_res",
      "render_style": "cinematic_photoreal_candid_photo",
      "sharpness": "crisp_but_natural",
      "film_grain": "subtle_35mm",
      "color_grade": "natural_daylight_with_rich_reds",
      "dynamic_range": "natural_not_hdr",
      "skin_rendering": "real_texture_no_retouch"
    },
    "creative_prompt": {
      "scene_summary": "A photoreal candid outdoor portrait in a grassy park under a bright blue sky with scattered clouds. The SAME young adult woman (face must match the reference EXACTLY) stands centered, smiling broadly with eyes squeezed shut in a joyful expression. She holds a bouquet of shiny red heart-shaped helium balloons (6–8 balloons) close around her head and shoulders. Thin white balloon strings gather into both of her hands at chest level. The balloons are glossy with strong specular highlights, like real mylar.\n\nWardrobe: red sleeveless fitted top (simple, casual, not lingerie) and light blue jeans. Natural body language, playful vibe.\n\nLighting: daytime outdoor ambient plus a direct on-camera flash look (slightly harsh but realistic), giving bright highlights on face and balloons and darker background falloff.\n\nBackground: open lawn with dark tree line in the distance; no crowds; no signs; no text. Keep the image believable and photographic.",
      "composition_and_camera": {
        "framing": "waist-up to mid-thigh portrait, balloons filling upper frame, subject centered",
        "lens": "phone/DSLR portrait feel (28–50mm equivalent)",
        "depth_of_field": "moderate separation, background slightly soft but still recognizable",
        "authenticity": "realistic balloon shapes, correct string tension, natural hand anatomy"
      }
    },
    "negative_prompt": [
      "any text",
      "logos",
      "watermark",
      "readable brand names",
      "face mismatch",
      "identity drift",
      "beautify",
      "over-smoothing",
      "plastic skin",
      "AI glow",
      "HDR",
      "overexposed face",
      "weird balloon seams",
      "melted balloons",
      "extra fingers",
      "deformed hands",
      "duplicate faces",
      "unrealistic shadows",
      "cartoon",
      "illustration",
      "anime",
      "low resolution",
      "blurry subject"
    ]
  }
}