anime illustration, great quality, best quality, A full-body portrait of a noblewoman with long white hair, wearing a glossy black raven mask covering her upper face and wielding an ornate black feather fan in her left hand, captured from a low angle as she stands in a dimly lit mansion corridor. She possesses piercing golden eyes visible through the mask, full lips, and pale skin conveying serene dignity, dressed in a refined black lace gown with trailing sleeves, intricate floral embroidery, and a high collar accentuating her shoulders. The background features an opulent, candlelit mansion interior: towering arched windows, velvet curtains, dark wood paneling, marble floors scattered with dust motes, vintage candelabra with flickering flames, and weathered antique furniture partially obscured by shadows. Cinematic volumetric lighting and strong chiaroscuro effects create dramatic highlights on lace textures, metallic mask edges, and soft feather barbs, with cool deep-blue and gold color palette, depth of field, glowing particles, and an atmosphere of elegant grandeur and quiet melancholy.