A female shinobi glances back, viewed from behind, her mask concealing her face yet allowing long black hair to stream down her back. She holds a katana with confidence, her dark padded outfit intricately detailed with leather and metallic accessories. The attire, primarily black with striking red accents, emphasizes dark tones and muted colors in an atmosphere of high contrast and hyperrealism. Set against a black backdrop, the minimal lighting casts dramatic shadows, accentuating her mysterious presence while maintaining a sense of elegance and power. The composition is detailed and precise, avoiding low resolution, anatomical inaccuracies, or awkward poses.