photorealistic architectural render preserve the existing architecture exactly as it is including structure proportions materials textures openings and overall composition do not modify add or remove any architectural elements change only the railings so they match the same grey tone and finish as the building wall plaster same color family same lightness same matte plaster like appearance the railings should visually integrate with the facade not stand out as a different material or darker lighter element keep all other materials and finishes unchanged use soft morning natural light with neutral white balance avoid warm tones yellow tint golden hour lighting or any color cast maintain a clean realistic illumination with soft natural shadows ensure consistent brightness across the entire image without darkening any surfaces maintain a calm cohesive photorealistic architectural aesthetic