edit both images as follows replace all existing stone slabs with travertine slabs in the largest possible realistic format important only replace surfaces where stone slabs already exist do not add travertine anywhere new do not extend or create new surfaces only change the material of the slabs not the layout or overall shape keep joints pattern and orientation as clean and realistic as possible use large slab sizes minimal joints large format look realism travertine must look highly photorealistic natural pores subtle color variation authentic texture ensure realistic lighting shadows and reflections matching the environment perspective must be accurate surface should look slightly imperfect and natural not overly smooth or artificial do not change do not modify any other elements in the image do not change furniture architecture or surroundings do not alter overall scene colors or lighting setup goal the travertine should appear only where stone already exists and look like it was originally built with high end large format slabs seamless and fully photorealistic
