A young woman with striking white hair styled in a sleek ponytail, adorned with a delicately crafted horn headband, dons a rugged dark denim jacket. Her piercing blue eyes reflect the neon lights of a bustling cyberpunk subway setting. Over her shoulder, a backpack subtly reveals the hilt of a katana. The scene captures hyperrealistic details in a photorealistic 8k quality, blending the vivid textures and dramatic lighting of an unreal engine 3D render. The atmosphere conveys a dynamic and expressive style in a tall, narrow aspect ratio, enveloping her in the energy of a futuristic urban world.