Interesting idea to have the tiled floor/painted wall combo and the tiles in the shower match the wall colour but are different from the floor. The niche for storage works is practical. Would the walk in shower spread water all over the bathroom?
For a simple look - Large white tiles - Kerry Phelan Design. Similar layout of our small bathroom with a floating sink! Would prefer a glossier finish to the tiles since we won't be tiling all the walls "wet room.