Female shinobi glancing over her shoulder, viewed from the rear, wearing a mask, her long black hair cascading down, holding a katana in hand, clad in a dark padded outfit with intricate leather and metallic details, blending black and red hues, set in a shadowy, muted color palette, with high contrast elements against a black backdrop, the scene lit subtly to enhance mystery and intensity, without imperfections in anatomy or detail, aiming for a hyperrealistic portrayal.