A medium shot, eye-level anime illustration of Serina Kurusu, a 26-year-old woman with an elegant and mature aura, standing on a seaside promenade at night after rain. She has fair, slightly flushed skin and refined features, with deep, transparent violet eyes possessing a glassy luster and subtle reflections, gazing toward the viewer with a gentle, half-closed expression. Her glossy navy-blue straight long hair reaches her waist, shimmering with blue-purple highlights under the moonlight. She is dressed in a simple, elegant pale lavender sleeveless one-piece dress with natural drapes, draped with a loose white shawl over her shoulders, and adorned with pearl earrings and a small silver pendant. One hand is softly placed against her chest in a graceful gesture. The background features a wet stone promenade and the sea surface, both glistening with reflections of golden streetlights. Warm golden light from the lamps strikes her hair, cheeks, and dress diagonally, blending with cool moonlight and reflections to create complex, jewel-like highlights and deep blue-purple shadows within the fabric's folds. The atmosphere is romantic and intimate, rendered with high-definition detail and a vibrant, contrasting color palette of gold and purple.