A charming young woman with sleek white hair in a ponytail, sporting a gleaming metallic horn headband, clad in a stylish dark denim jacket. She carries a futuristic backpack with a sleek katana attached, her striking blue eyes reflecting the neon glow of the cyberpunk subway environment around her. Rendered in hyperrealism with photorealistic detail, the scene is captured in stunning 8k resolution using the Unreal Engine, showcasing expressive style and vibrant atmosphere in a 3D render --ar 9:16.