preserve all material colours exactly as shown in the source image maintain the original colour values tone saturation and brightness of every exterior material dark materials charcoal cladding black metal roofing dark window frames and shadowed surfaces must retain their original appearance and colour depth maintain the same dark tones and visual contrast present in the source image apply realistic sunlight and photographic lighting material colours remain visually consistent with the original render while realism is enhanced use the input image as a strict colour reference architectural materials should match the original image in colour tone and contrast maintain the existing shiplap cladding colors exactly as shown in the source image