華麗な侍甲冑をまとい、刀を持つ仮面のアニメ少女

A masterpiece, extremely detailed premium anime illustration, character design focus. A formidable young woman wearing (a fierce oni mask: deep-crimson lacquered demon face with gilded horns, a fanged snarl, gold-painted brows and small hanging talisman charms:1.4), through the eye-holes (her sharp intense gaze glows with a hidden samurai identity:1.4). Captured in a (medium shot:1.3) from a (warm, eye-level perspective:1.2). She wears (an ornate samurai outfit: layered crimson-and-black lacquered armor plates, wide patterned obi sash, angular shoulder guards, strapped greaves and a katana at her hip:1.3). (A grounded battle stance with one hand resting on her katana hilt, chin lifted:1.4). The scene is illuminated by (warm, soft dusk light and a bright ambient glow:1.4), ensuring her clear skin texture and facial features are perfectly visible. The focus is on (her fierce eyes behind the oni mask and the detailed samurai armor design:1.4). Best quality, ultra highres, masked character showcase.