upgrade this bathroom to a refined high end modern design while preserving the exact layout and camera angle replace all tiles with large format porcelain slabs 60x120 cm or larger with very subtle natural texture and almost invisible joints avoid repetitive patterns or strong veining use a warm soft stone or travertine look with minimal contrast for a calm elegant appearance ensure surfaces look continuous and realistic like real large slabs rather than small repeated tiles improve lighting with soft indirect illumination and gentle highlights to enhance depth and material quality keep the design minimal clean and architect level with a premium european aesthetic the result must look like real architectural photography not ai generated avoid repeating tile patterns and avoid artificial or exaggerated marble veining make surfaces feel matte or satin not glossy or plastic make a build in wall wc
