{
  "generatedAt": "2026-02-27T03:30:10.148Z",
  "model": "Imagen 4.0",
  "modelId": "imagen-4.0-generate-001",
  "provider": "google",
  "prompt": "A square 1024x1024 digital painting, evoking a mysterious and slightly whimsical atmosphere. The central image is a close-up of a stylized, intelligent-looking frog wearing a small, classic detective's fedora hat tilted slightly. The frog's eyes are large and expressive, conveying curiosity and a hint of melancholy. Behind the frog, a subtle, out-of-focus background suggests a dimly lit, old study or library, with hints of shadowy bookshelves and perhaps a faint glow from an unseen lamp. The color palette should be rich and atmospheric, featuring deep emerald greens, muted browns, and touches of sepia, with soft, diffused lighting that creates a sense of depth and intrigue. The overall mood is contemplative and intriguing, suitable for a sophisticated mystery novel. The composition is centered on the frog's face, drawing the viewer's attention immediately. Professional audiobook cover aesthetic, square 1024x1024 format, no text.",
  "enhancedPrompt": "A square 1024x1024 digital painting, evoking a mysterious and slightly whimsical atmosphere. The central image is a close-up of a stylized, intelligent-looking frog wearing a small, classic detective's fedora hat tilted slightly. The frog's eyes are large and expressive, conveying curiosity and a hint of melancholy. Behind the frog, a subtle, out-of-focus background suggests a dimly lit, old study or library, with hints of shadowy bookshelves and perhaps a faint glow from an unseen lamp. The color palette should be rich and atmospheric, featuring deep emerald greens, muted browns, and touches of sepia, with soft, diffused lighting that creates a sense of depth and intrigue. The overall mood is contemplative and intriguing, suitable for a sophisticated mystery novel. The composition is centered on the frog's face, drawing the viewer's attention immediately. Professional audiobook cover aesthetic, square 1024x1024 format, no text., 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"
}