space marine, Warhammer 40k, Space Wolves chapter, power armor, fur cloak, wolf insignia, boltgun, chainsword, battle stance, icy tundra, snowflakes, frost breath, grimdark atmosphere, towering spires, gothic architecture, full armor detail, dynamic lighting, action pose, blizzard, heavy snow, 3/4 view, high contrast, detailed texture, metallic sheen, worn battle gear, sci-fi fantasy, epic scale, moonlit night, volumetric fog, cinematic angle.