Bathroom Tiles Design

I am totally smitten with this modern, spacious bath with an artistic flair. Free-standing tub with wooden feet and three tiled insets on the wall behind it. I think the nooks must be set in between the wall studs, so maybe it was a lucky coincidence the lined up so perfectly? Each one is tiled with a mixture of my handmade art tiles and two inch by two inch field tiles from another source: First panel, above: 4"x4" Pine Tile, 4"x8" Heron Tile, 4"x4" Spring Oak Tile Middle panel features a 4"X4" Jellyfish Tile, 4"x4" Nest Tile & 4"x4" Turtle...