{
  "generatedAt": "2026-03-11T14:30:16.161Z",
  "model": "Imagen 4.0",
  "modelId": "imagen-4.0-generate-001",
  "provider": "google",
  "prompt": "A dark and atmospheric square digital painting for an audiobook cover, 1024x1024. The central image is a majestic, ancient castle silhouetted against a stormy, twilight sky. Wisps of dark, swirling mist rise from the grounds towards imposing, gothic towers. In the foreground, a gnarled, ancient tree with twisted branches reaches out, its leaves a deep, shadowy green, partially obscuring a hidden, glowing symbol that hints at magic. Subtle, ethereal light emanates from a single, high window within the castle. The overall color palette is dominated by deep blues, purples, greys, and hints of emerald green, evoking a sense of mystery, danger, and wonder. The composition is dramatic and layered, with a focus on texture and shadow to create a deep, immersive mood. No text, no logos, just the visual artwork.",
  "enhancedPrompt": "A dark and atmospheric square digital painting for an audiobook cover, 1024x1024. The central image is a majestic, ancient castle silhouetted against a stormy, twilight sky. Wisps of dark, swirling mist rise from the grounds towards imposing, gothic towers. In the foreground, a gnarled, ancient tree with twisted branches reaches out, its leaves a deep, shadowy green, partially obscuring a hidden, glowing symbol that hints at magic. Subtle, ethereal light emanates from a single, high window within the castle. The overall color palette is dominated by deep blues, purples, greys, and hints of emerald green, evoking a sense of mystery, danger, and wonder. The composition is dramatic and layered, with a focus on texture and shadow to create a deep, immersive mood. No text, no logos, just the visual artwork., professional book cover design, high quality, striking composition, commercial appeal, clean design, marketable, suitable for print, purely visual artwork only, absolutely no text anywhere in the image, no letters no words no title no author name no typography no writing no inscriptions"
}