core instruction keep the image exactly as it is do not change composition objects or materials only enhance micro detail depth and realism terracotta tiles micro refinement introduce very subtle tonal variation between tiles enhance slight natural imperfections in ceramic surface increase depth in grout lines with soft micro shadowing lighting refinement slightly increase shadow depth in corners and contact areas introduce a gentle light falloff on the right wall to avoid flatness maintain overall lighting balance toilet final adjustment increase contact shadow at the base enhance subtle matte ceramic light diffusion keep shape and color exactly the same overall maintain current color balance and warmth do not increase brightness do not clean excessively preserve tactile realism