Pretty neat map. I especially like the floor and we were talking about voronoi patterns a few weeks back too. The walls could do with just a touch of shadow to bring out the depth of them but its a clean and neat map.
You should tell us what you used to make it with and also post some of your projector set up too. We had a little talk about projectors a while ago too. Just out of a kind of professional interest, do you find getting the image projected into correct scale for your miniatures an issue for your maps ?