The gorgeous vintage clawfoot tub was a Craigslist find, which Rosa painted matte black on the outside and reglazed on the inside. It's a stunning find! And the Marc Royce piece above it adds even more luxury.
Floor to ceiling subway tiles, with light grey grout, similar to that shown here or perhaps a fraction lighter. We are having dark square (300mm x 300mm) tiles on the floor - probably laid normally rather than diagonally as shown here - and with half a floor tile laid up the wall to create a skirting.