grey & white Interesting that the crown molding is painted gray to blend with the upper portion of the wall. This is a great Tim to avoid "boxing" a room by painting upper and lower trim. Either continue ceiling color onto upper, or wall, as here.
The Marble hexagon tiles are for the shower floor. The white subway tiles are for the shower itself, and will have an accent of that glass + marble tile that you see. What isn't shown is the bathroom floor tile Marble pieces).