Yet another Bathroom tile layout pattern can be the "Mosiac" pattern.

Bathroom Tile

A mosaic tile layout works best when used in small doses, such as around your mirror or placed around the bathtub. The advantage of using a mosaic tile layout is that you don't need to spend a lot of time worrying about what goes where. You can use any shades that work with the rest of your bathroom and in any size.
Some architects even use several shades of tiles and break those tiles into different pieces to create a unique and interesting pattern.