Ultra-realistic full body mirror selfie of a beautiful young woman wearing a soft pastel butter-yellow luxury evening gown inspired by high-fashion couture. Elegant full-length gown with modest sophisticated design, flowing layered chiffon fabric, refined draped silhouette, high neckline, long sheer-lined sleeves, fully covered bodice, floor-length skirt with no slit, graceful A-line shape, luxurious couture craftsmanship, feminine and classy silhouette. Fabric remains soft, premium, and richly textured with delicate ruching and elegant draping. Hair styled in a sleek low bun, ultra neat and elegant with glossy dark brown hair, soft face-framing strands. Korean beauty makeup look: glowing glass skin, soft peach blush, subtle contour, glossy nude lips, long wispy lashes, natural aegyo-sal eyes, dreamy feminine expression. Pose: classy mirror selfie, holding phone naturally, standing confidently, full body visible from head to toe. Elegant luxury boutique fitting room background with warm cinematic lighting, fashion runway atmosphere, reflective mirror, soft shadows, expensive couture vibe. Accessories: delicate diamond earrings, minimal luxury jewelry, nude manicure, classy feminine aura. Photography style: ultra-realistic, cinematic lighting, editorial fashion photography, high detail skin texture, realistic fabric folds, luxury Instagram aesthetic, 85mm lens, shallow depth of field, photorealistic, soft luxury color grading. Modest fashion, elegant and sophisticated, fully covered outfit, no cleavage, no transparent areas, no exposed shoulders, no thigh slit, graceful luxury aesthetic, refined couture elegance.