Urban Sculptural Bus Stop

Based on the uploaded sketch, generate a single, modern sculptural bus stop shelter with a flowing, cantilevered roof and integrated seating. Material is smooth, light gray reinforced concrete with subtle texture. The overall form should be organic and minimalistic, providing both shade and an open feel. Add clean, PBR textures with a matte finish. Focus on strong geometric definition and clean topology. Avoid background, ground plane, multiple objects, text, floating parts, or complex surrounding environment.