Arctic catundra, vast frozen tundra landscape, snow-covered rolling hills, scattered ice rocks, frosty misty atmosphere, aurora borealis in the night sky, solitary polar bear, walking slowly, fur fluffed up against cold, icy eyes, frostbitten nose, thick white fur, majestic powerful posture, distant snowy mountain range, pale blue grey mist, cinematic composition, high contrast, dramatic lighting, frozen lake in the background, ice cracks and fissures, cold wind whispers.