Simple Dungeon Tiles - Brick

I made this set specifically for a public game I run, I needed something compact and quick but that added a little something to the game. This is inspired by the Cheap Low Profile Dungeon Tiles https://www.thingiverse.com/thing:1064498 but I could not get that stl imported to sketchup to make more styles and package them better. So I started from scratch. Shouldn't need supports for the reliefs but it wouldn't hurt.