{
  "generatedAt": "2026-02-16T08:00:17.983Z",
  "model": "Imagen 4.0",
  "modelId": "imagen-4.0-generate-001",
  "provider": "google",
  "prompt": "A dramatic, atmospheric illustration in the style of classic WWII naval art. The central image is a dark, menacing German U-boat partially submerged in stormy, choppy ocean waters. Waves are crashing over its conning tower. Subtle lighting from a stormy sky (dark greys, deep blues, hints of muted yellow/orange on the horizon) illuminates the scene. The overall mood is tense, isolated, and dangerous. The composition should be dynamic, with the U-boat angled slightly, implying movement and threat. Focus on realistic textures for the metal of the submarine and the churning water. The aesthetic should be that of a professional, impactful book cover for a historical thriller. Aspect ratio: 1024x1024. No text.",
  "enhancedPrompt": "A dramatic, atmospheric illustration in the style of classic WWII naval art. The central image is a dark, menacing German U-boat partially submerged in stormy, choppy ocean waters. Waves are crashing over its conning tower. Subtle lighting from a stormy sky (dark greys, deep blues, hints of muted yellow/orange on the horizon) illuminates the scene. The overall mood is tense, isolated, and dangerous. The composition should be dynamic, with the U-boat angled slightly, implying movement and threat. Focus on realistic textures for the metal of the submarine and the churning water. The aesthetic should be that of a professional, impactful book cover for a historical thriller. Aspect ratio: 1024x1024. 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"
}