A charming young woman with sleek white hair styled in a ponytail and a horn-inspired headband stands poised. She wears a fitted dark denim jacket and carries a stylish backpack with a katana subtly peeking out. Her striking blue eyes glimmer with curiosity in the ambient neon glow of a bustling cyberpunk subway station. The scene is captured in hyperrealism, exhibiting photorealistic details, rendered in stunning 8k using ultra-realistic 3D technology. A feeling of urban energy surrounds her, adding an expressive flair to the composition.