A female shinobi stands in a poised stance, looking back over her shoulder. Her long, sleek black hair flows elegantly down her back, partially concealed by a dark mask. She grips a sharp katana with expertise, her dark padded outfit accented by leather and metallic accessories, all in a striking palette of black and red. The scene is set in dark tones and muted colors, captured in high contrast and hyperrealism against a deep black backdrop. Subtle, minimal lighting accentuates her form, adding to the mysterious aura surrounding her presence.