keep the exact same layout structure proportions and camera angle do not change anything in the design or materials do not move or modify any objects keep all finishes exactly the same enhance the image to be a high end professional realistic render improve lighting shadows reflections and overall realism add soft warm underlighting inside the shower niche make it subtle and integrated not too strong improve natural lighting and add soft ambient lighting for a realistic interior atmosphere enhance material textures for realism without changing their color or finish clean minimal high end look no redesign no added elements