Left-over Tile Adhesive Hills

Things have been busy at work, so I haven't been able to do any more figure painting.
However this weekend I had to re-tile the toilet at home.  When I was done adhering the tiles, I had some of the tile adhesive left over, so I grabbed a couple of old CDs and built some terrain with the leftovers.

Turned out pretty well.  The vehicles above are from a lot that I purchased on eBay last year. (It's a pretty sad indictment that the only painted vehicles I can quickly lay my hands on are some that I bought painted!!)  The figures in the back are the single base of UK Marines that I've painted to date for the Falklands project.
Two hills and the wadi below.