Create a refined backstage portrait of an adult East Asian ballet dancer around age 27 during a quiet rehearsal break in an old theater. She wears a modest charcoal rehearsal leotard, soft wrap cardigan and ankle-length practice skirt, seated on a plain wooden rehearsal box while carefully tying one pointe shoe. Keep her expression focused and natural, with hands, feet and shoe construction clearly believable. Use a vertical 3:4 frame, three-quarter camera angle, full seated figure and a 50mm lens look. Build narrative depth with a deep burgundy curtain, worn wooden floor, softly glowing round mirror bulbs and a glimpse of empty stage wings. Balance warm practical bulbs with cool dim stage spill, preserving satin, knit fabric, matte practice wear, scuffed wood and realistic skin texture with subtle film grain. Use the mirror only as a secondary layer with anatomically consistent reflection. No posters, readable notices, logos, trademarks, watermark, collage, border or typography. Avoid performance costumes, theatrical tutus, sexualized posing, plastic skin, distorted toes or fingers, duplicate reflection errors, crowded dressing rooms and stage fog.