create a luxurious modern bathroom with a sleek and minimalist design use soft white marble for the walls and floor tiles creating a seamless and elegant look incorporate a floating rectangular bathtub with a pristine white finish add a floating vanity with a white rectangular sink and a matte black faucet enhancing the monochromatic theme the shower area should be enclosed with clear glass and feature a matte black rain showerhead include a large rectangular mirror with a matte black frame above the sink add neatly stacked white towels on a matte black towel rack ensure natural light streams in from a partially open window casting soft shadows and creating a serene and calming atmosphere