Prompt
"Generate a photorealistic image of a gray whale (Eschrichtius robustus) in its natural habitat, specifically in the coastal waters of the North Pacific Ocean, showcasing its distinctive gray mottled skin, lack of dorsal fin, and series of knuckles on its back, with a backdrop of shallow seas and possibly breaching or spyhopping, highlighting its massive size, up to 12-15 meters in length and weighing up to 40 tonnes."