Prompt: Permian period, nautilus in the ocean, Mark Ryden, hyperrealistic, overdetalized, airbrushing, cgi rendering | Daniel F. Gerhartz, Gustav Dore Greg Rutkovsky, Zdzislav", oil painting, heavy strokes, dripping paint, professional ominous concept art, by artgerm and greg rutkowski, an intricate, elegant, highly detailed digital painting, concept art, smooth, sharp focus, illustration, in the style of simon stalenhag, wayne barlowe, and igor kieryluk.
Negative prompt: two heads,poorly drawn hands, poorly drawn feet, poorly drawn face, out of frame, extra limbs, disfigured, out of frame, blurry, blurred, watermark, grainy, signature, cut off, draft,  heterochromia, tiling