I somehow managed to way over buy the fancy green tile, and to run out of the curved tile for the top edges. This is a pain because the tile store, like so many places, doesn't cater to people that have jobs - it closes at 5:00.
There's several small problems with the installation also, such as at the edge of where the door trim will be, and around the corners of the wall separating the toilet from the shower. I definitely should not have started this. The expense, and the unbelievable waste, is embarrassing.