Winter Realms: Snowy Concept Art for a Video Game

Ultra-detailed concept art for a snow-covered landscape intended for a fantasy action-RPG video game. A vast wind-swept valley blanketed in pristine snow, with frost-coated pines, jagged rock formations, and an ancient ruined citadel half-buried under drifts. Cool palette of blues and pale whites, with soft cinematic lighting, long shadows, and gentle snowfall. Atmospheric fog and subtle breath of cold air add depth, along with delicate snow particle effects. The composition centers on a dramatic focal point: an ornate arched doorway in the ruined citadel peeking from the snow, inviting exploration. Painterly yet semi-realistic style, suitable for concept art and game asset design, with clear depth, layered textures for snow, ice, and frost, and distant snowy mountains on the horizon. Optional hint of a faint aurora or magical glow within the ruins to suggest fantasy elements. The image should read as a video game environment concept art, ready for world-building, lighting passes, and asset creation.