Very nice. A few too many pillars for my tastes, but that's subjective. I was a little surprised to notice that you didn't keep everything connected. In most maps I looked at, there are at least a couple spots where two tiles connect to each other and nothing else. I think I'd like more tiles that were mostly, but not completely empty space, too, but I can't be sure of that unless I try it. Right now it looks just a bit too busy for me. One more thing... A dark background for the non-map portions would probably make things stand out alot better.

Still, all in all it looks great!