photorealistic architectural render preserve the existing architecture exactly as it is including structure proportions materials textures and overall composition do not modify add or remove any architectural elements change only the railings to a matte grey color keep all other materials and finishes unchanged use soft morning natural light with neutral white balance avoid any warm tones yellow tint golden hour effect or color cast from lighting maintain realistic even illumination with subtle natural shadows ensure the aesthetic remains consistent calm and realistic with no changes to environment design language or spatial layout