This could work in a tiny bathroom. Love the tiled floor/painted wall combo and the fact that the tiles in the shower match the wall colour but are different from the floor. The niche for storage works well for us too.
Warm gray porcelain tiles create a modern masculine feel in this recent Woodley Park-DC bathroom remodel. A non-working whirlpool tub was replaced with a generous walk-in shower and frameless glass enclosure.