【米之ラン】クリスタル輝く幻想世界を探索

米之ランが、光り輝くクリスタルと巨大な植物が点在する幻想的な異世界を笑顔で歩いています。遠くには惑星が見え、神秘的な冒険の始まりを予感させます。
📥 オリジナル画像をダウンロード

上記イラストを作成した際のプロンプトです。
※NanobananaPro を使用しています。
※下記に要素ごとに分解したプロンプトも記載していますので、自由に組み替えてご利用ください。
{
  "meta": {
    "image_quality": "High",
    "image_type": "Illustration"
  },
  "global_context": {
    "scene_description": "Fantasy landscape at sunset/dawn with a cheerful anime-style young girl standing center-foreground on a grassy path surrounded by oversized crystalline plants, bioluminescent flora, massive trees and floating rock formations; pastel sky shows multiple moons/planets and soft particle sparkles.",
    "time_of_day": "Sunset/Dawn (golden hour)",
    "weather_atmosphere": "Serene, clear, magical",
    "lighting": {
      "source": "Sunlight (directional) with ambient glow",
      "direction": "Top-left rim/backlit mix",
      "quality": "Soft, diffused with lens-like glow",
      "color_temp": "Warm with cool accents"
    }
  },
  "color_palette": {
    "dominant_hex_estimates": ["#F6D6C7","#89D4FF","#7AE7B8"],
    "accent_colors": ["lavender","teal"],
    "contrast_level": "Medium"
  },
  "composition": {
    "camera_angle": "Eye-level",
    "framing": "Medium-shot (full figure visible)",
    "depth_of_field": "Deep (foreground and background readable)",
    "focal_point": "Girl with white hair and green-accent hoodie"
  },
  "objects": [
    {
      "id": "obj_001",
      "label": "Girl",
      "category": "Person",
      "location": "Center",
      "prominence": "Foreground",
      "visual_attributes": {
        "color": "white hair, green eyes, white hoodie with green hood/pocket, dark pleated skirt, green socks",
        "texture": "smooth cel-shaded skin, soft fabric hoodie, matte skirt",
        "material": "cloth/skin",
        "state": "clean, new",
        "dimensions_relative": "Medium (occupies ~20% frame)"
      },
      "micro_details": [
        "short bob hair with green hairpin",
        "bright green eyes with highlights",
        "hoodie drawstrings visible",
        "slight shadow under chin"
      ],
      "pose_or_orientation": "Standing, arms slightly out, facing viewer",
      "text_content": null
    },
    {
      "id": "obj_002",
      "label": "Crystals and bioluminescent plants",
      "category": "Flora/minerals",
      "location": "Left & right foreground",
      "prominence": "Foreground-to-midground",
      "visual_attributes": {
        "color": "iridescent pastel (cyan, pink, purple)",
        "texture": "faceted, translucent, glowing",
        "material": "crystal-like",
        "state": "luminous",
        "dimensions_relative": "Small-to-medium clusters"
      },
      "micro_details": [
        "internal glow gradients",
        "light scatter on nearby leaves",
        "tiny spark particles around"
      ],
      "pose_or_orientation": "clustered, rooted to ground",
      "text_content": null
    },
    {
      "id": "obj_003",
      "label": "Ancient tree",
      "category": "Tree",
      "location": "Left background",
      "prominence": "Background-to-midground",
      "visual_attributes": {
        "color": "dark brown trunk with green moss",
        "texture": "rough bark with moss patches",
        "material": "wood",
        "state": "healthy, aged",
        "dimensions_relative": "Large, spans top-left"
      },
      "micro_details": [
        "hanging vines",
        "light rays filtering through canopy",
        "small flowers on trunk"
      ],
      "pose_or_orientation": "upright, trunk angled slightly right",
      "text_content": null
    },
    {
      "id": "obj_004",
      "label": "Floating rock formations",
      "category": "Geological",
      "location": "Midground-right & background",
      "prominence": "Background",
      "visual_attributes": {
        "color": "muted purples and browns",
        "texture": "stratified stone, smooth tops",
        "material": "rock",
        "state": "stable",
        "dimensions_relative": "Massive, horizon-scale"
      },
      "micro_details": [
        "soft rim lighting",
        "subtle mist at bases"
      ],
      "pose_or_orientation": "levitating/table-like shapes",
      "text_content": null
    },
    {
      "id": "obj_005",
      "label": "Sky bodies",
      "category": "Celestial",
      "location": "Top-right sky",
      "prominence": "Background",
      "visual_attributes": {
        "color": "blue, teal, pale pink",
        "texture": "smooth, cloudy",
        "material": null,
        "state": "visible multiple moons/planets",
        "dimensions_relative": "Large but distant"
      },
      "micro_details": [
        "two visible planetary discs",
        "star-like sparkles"
      ],
      "pose_or_orientation": "stationary"
    }
  ],
  "text_ocr": {
    "present": false,
    "content": []
  },
  "semantic_relationships": [
    "Girl is standing on grassy path among crystals",
    "Sunlight casts top-left rim glow across tree and girl",
    "Crystals emit glow that lights nearby foliage",
    "Floating rocks frame distant horizon behind girl"
  ]
}

画像参照部分
※ご使用のGUIによってはタグ参照が利用できる場合があります。GUIをお使いの場合は、そのフォーマットに従ってください。
image1 is base character

下記のJSONプロンプトを組み合わせる際、冒頭に付けると効果的なプロンプトです。
Please generate a single illustration by integrating the following three JSON blocks: 1. Character Design, 2. Current State, and 3. Environment.

キャラクターの外見要素（固定デザイン）
下記プロンプトを使用すると、似たキャラクターを再現できます。
{
  "character_concept": {
    "label": "Anime-style young girl (White hair / Green hoodie theme)",
    "visual_attributes": {
      "color": "White hair, bright green eyes, white hoodie with green hood/pocket, dark pleated skirt, green socks.",
      "texture": "Smooth cel-shaded skin, soft fabric hoodie, matte skirt.",
      "material": "Cloth, skin, stylized hair.",
      "state": "Clean, new clothing.",
      "dimensions_relative": "Medium (Teenager stature)"
    },
    "design_details": [
      "Short bob haircut with green hairpin.",
      "Hoodie with visible drawstrings and green accents.",
      "Dark pleated skirt and matching green socks."
    ]
  }
}

キャラクターの変化要素（ポーズ・表情）
下記プロンプトを使用すると、似たポーズや表情を再現できます。
{
  "current_state": {
    "pose_or_orientation": "Standing centered on a path, arms slightly out, facing the viewer.",
    "expression_details": [
      "Cheerful expression.",
      "Direct gaze with bright highlights in eyes.",
      "Slight shadow under chin indicating lighting direction."
    ]
  }
}

環境・その他の要素（背景・照明・画風）
下記プロンプトを使用すると、似た雰囲気のイラストを作ることができます。
{
  "global_context": {
    "scene_description": "A fantasy landscape at golden hour featuring oversized crystalline plants, bioluminescent flora, massive trees, and floating rock formations. The pastel sky displays multiple moons and planets with soft particle sparkles.",
    "time_of_day": "Sunset/Dawn (Golden hour)",
    "lighting": {
      "source": "Sunlight (directional) + ambient bioluminescence",
      "direction": "Top-left rim/backlit mix",
      "quality": "Soft, diffused with lens-like glow",
      "color_temp": "Warm with cool accents"
    }
  },
  "composition": {
    "camera_angle": "Eye-level",
    "framing": "Medium-shot (full figure visible), centered",
    "depth_of_field": "Deep (Foreground crystals and background floating rocks readable)"
  },
  "environment_objects": [
    {
      "label": "Crystals and bioluminescent plants",
      "visual_attributes": {
        "color": "Iridescent pastel (cyan, pink, purple)",
        "texture": "Faceted, translucent, glowing",
        "material": "Crystal, plant",
        "state": "Luminous, clustered",
        "dimensions_relative": "Small-to-medium foreground clusters"
      }
    },
    {
      "label": "Ancient tree",
      "visual_attributes": {
        "color": "Dark brown trunk, green moss",
        "texture": "Rough bark, moss patches, hanging vines",
        "material": "Wood",
        "state": "Healthy, aged",
        "dimensions_relative": "Large background element (left)"
      }
    },
    {
      "label": "Floating rock formations",
      "visual_attributes": {
        "color": "Muted purples and browns",
        "texture": "Stratified stone, smooth tops",
        "material": "Rock",
        "state": "Levitating, stable",
        "dimensions_relative": "Massive background elements"
      }
    },
    {
      "label": "Sky bodies (Moons/Planets)",
      "visual_attributes": {
        "color": "Blue, teal, pale pink",
        "texture": "Smooth, cloudy",
        "material": "Celestial body",
        "state": "Visible multiple bodies",
        "dimensions_relative": "Distant background"
      }
    }
  ]
}


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