hard constraints do not change preserve the exact geometry layout proportions camera position and wall distribution from the reference image do not move walls do not add furniture and do not change architectural elements the cylindrical sauna remains in the exact center there is no bench behind the sauna maintain the original wall panels and marble placement exactly as in the image scene description interior luxury spa corridor with a central cylindrical sauna made of ribbed fluted glass the sauna has a circular glass skylight in the ceiling above it allowing natural light to enter surrounding walls are large vertical marble panels the floor is light matte travertine stone the ceiling is smooth beige plaster in the far background behind the interior architecture a distant los angeles city skyline landscape is visible through the opening subtle and far away material realism upgrades marble walls should be deep green stone matching the tone of the original image with natural veins and high resolution stone texture marble has soft low reflections and realistic imperfections not glossy ribbed glass of the sauna should have accurate light refraction and subtle distortion through the vertical fluting travertine floor should be matte with visible natural pores and micro texture add realistic global illumination soft light entering through the skylight above the sauna photorealistic lighting ray traced reflections natural shadows high end architectural visualization quality