Image promptpolar bear, large powerful arctic bear, dense muscle under thick weather-yellowed white fur, black nose lips and eyes, reared full-height roar, immense forepaws with black hooked claws, naturalistic real animal, cracked ice floe, bleak frozen glacial waste, fogging breath, muted off-white and slate-blue ice, cold flat light, long snow shadows, dark fantasy, grimdark, painterly digital art, dramatic chiaroscuro lighting, muted desaturated palette with corrupted-crimson accents, weathered post-Cataclysm atmosphere, intricate high detail, cinematic composition