{
  "generatedAt": "2026-03-02T18:30:14.340Z",
  "model": "Imagen 4.0",
  "modelId": "imagen-4.0-generate-001",
  "provider": "google",
  "prompt": "A professional audiobook cover illustration, square format 1024x1024. The image depicts a solitary, ancient, gnarled tree silhouetted against a swirling, star-filled night sky. The tree's branches reach upwards like skeletal fingers, some tipped with faint, ethereal light. In the distance, a faint, nebulous glow emanates from behind a mountain silhouette, hinting at a hidden celestial body or an otherworldly dawn. The overall mood is mysterious, epic, and slightly melancholic. The color palette is dominated by deep indigos, midnight blues, dark purples, with touches of silver and pale gold for the stars and the distant light. The style should be painterly and atmospheric, with a subtle, dreamlike quality. The composition should be balanced, drawing the viewer's eye upwards towards the vastness of the cosmos. No text, no logos, only the visual artwork.",
  "enhancedPrompt": "A professional audiobook cover illustration, square format 1024x1024. The image depicts a solitary, ancient, gnarled tree silhouetted against a swirling, star-filled night sky. The tree's branches reach upwards like skeletal fingers, some tipped with faint, ethereal light. In the distance, a faint, nebulous glow emanates from behind a mountain silhouette, hinting at a hidden celestial body or an otherworldly dawn. The overall mood is mysterious, epic, and slightly melancholic. The color palette is dominated by deep indigos, midnight blues, dark purples, with touches of silver and pale gold for the stars and the distant light. The style should be painterly and atmospheric, with a subtle, dreamlike quality. The composition should be balanced, drawing the viewer's eye upwards towards the vastness of the cosmos. No text, no logos, only 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"
}