keep the existing image exactly as it is do not change the architecture geometry proportions facade composition windows doors roof landscaping camera position perspective framing or any design element only improve the photorealism of the rendering enhance all materials with realistic texture roughness reflections subtle imperfections and physically believable surface properties improve the lighting only use natural soft daylight create realistic global illumination improve shadow softness balance exposure reduce excessive contrast reduce oversaturation remove artificial hdr appearance create natural reflections in glass and metal keep colors neutral and realistic the final image should look like a professional architectural photograph important do not add remove move resize or redesign anything only improve materials lighting reflections and overall realism
