Nano Banana Prompt: Cozy Storybook Illustration Style

This is a detailed JSON-formatted prompt designed for image generation, specifically to create illustrations in a 'Cozy Storybook Illustration' style, mimicking the look of colored pencils and subtle watercolor washes. It includes two specific prompt variations, one focusing on texture and stroke, and another on mixed media watercolor effects. This prompt is intended for style transfer based on an uploaded image.

Prompt

{
  "design_system": {
    "metadata": {
      "style_name": "Cozy Storybook Illustration",
      "target_audience": "Children / Family",
      "reference_source": "Uploaded Image",
      "version": "3.0"
    },
    "visual_parameters": {
      "medium": {
        "primary": "Colored Pencil",
        "secondary": "Watercolor Wash (Variation only)",
        "application": "Hand-drawn",
        "texture": {
          "type": "Visible pencil strokes",
          "quality": "Slightly rough outlines",
          "finish": "Non-realistic / No photo texture"
        }
      },
      "line_work": {
        "style": "Clean line art",
        "weight": "Slightly rough/organic",
        "clarity": "High"
      },
      "color_theory": {
        "base_tone": "Warm and friendly",
        "palette_type": "Vibrant Pastel",
        "adjustments": {
          "brightness": "Increased / High-key",
          "saturation": "Enhanced but natural",
          "contrast": "Soft"
        }
      },
      "lighting_and_shading": {
        "shadows": "Minimal",
        "highlights": "Soft",
        "rendering": "Flat yet detailed",
        "gradients": "Subtle watercolor layers (Variation only)"
      }
    },
    "subject_geometry": {
      "anatomy": {
        "proportions": "Semi-cartoon realistic",
        "scale": "Storybook style"
      },
      "facial_features": {
        "eyes": "Dot style",
        "mouth": "Small smile",
        "complexity": "Simple / Minimalist"
      }
    },
    "atmosphere": {
      "mood": [
        "Cozy",
        "Cheerful",
        "Warm",
        "Friendly"
      ],
      "genre_tags": [
        "Children's Book",
        "Lifestyle Sketch",
        "Storybook Illustration"
      ]
    }
  },
  "generation_configs": {
    "negative_prompt_tokens": [
      "realism",
      "photorealistic",
      "photo texture",
      "dark colors",
      "complex shading",
      "3d render"
    ],
    "prompt_variations": [
      {
        "id": "PROMPT_001",
        "variant_name": "Textured Colored Pencil",
        "focus": "Texture and Stroke",
        "full_text": "Illustration style: hand-drawn colored pencil illustration, clean line art with slightly rough pencil outlines, soft pastel coloring with increased brightness, lighter and more vivid color tones, enhanced saturation while staying natural, visible pencil strokes and gentle shading texture, warm and friendly tone, semi-cartoon realistic proportions, simple facial features with dot eyes and small smiles, flat yet detailed coloring, minimal shadows, soft highlights, storybook illustration feel, cozy and cheerful atmosphere, vibrant yet soft color palette, children-book / lifestyle sketch style, high clarity, no realism, no photo texture"
      },
      {
        "id": "PROMPT_002",
        "variant_name": "Mixed Media Watercolor",
        "focus": "Wash and Gradient",
        "full_text": "{argument name="full text 2" default="Illustration style: hand-drawn colored pencil illustration, clean line art with slightly rough pencil outlines, soft pastel coloring with increased brightness, lighter and more vivid color tones, enhanced saturation while staying natural, visible pencil strokes and gentle shading texture, warm and friendly tone, semi-cartoon realistic proportions, simple facial features with dot eyes and small smiles, flat yet detailed coloring, minimal shadows, soft highlights, storybook illustration feel, cozy and cheerful atmosphere, vibrant yet soft color palette, children-book / lifestyle sketch style, high clarity, no realism, no photo texture"}"
      }
    ]
  }
}