I was messing around with paint, not really expecting anything good to come out of it (graphics are not my strong point!)
I came out with this, so I stuck it into a tileset and made a small level out of it. Below is a screenshot of the small level I made with this tileset.
I think I did a good job, but I'm sure you good artists can tear it apart and tell me how I can improve it.
The image on the right shows the new version, following Tig's advice to add more depth to the bricks.
PS: I know there is a bit of a grid with the sand tiles, but I never really looked at eliminating it. As long as I know It's there I can get rid of it later though.