A modern, elegant dress on a mannequin, featuring soft silk layers, a modest high neckline, and long, flowing sleeves in muted gold and cream tones. The background depicts a luxury rooftop hotel terrace at night, with ambient warm lighting, glass railings, potted greenery, and a distant city skyline glittering with lights. Include realistic fabric folds, subtle sheen on the silk, high-resolution detailing, and soft shadows from terrace lamps. No human figure or revealing design.