Thanks so much for all the nice comments guys I really appreciate it.

Arsheesh... I have tried more shadows and a drop shadow and this is the issue I'm having. The trees do look better with more shadowing, but when I do that they swallow up the mountains and dominate the map and it makes the mountains look flat. I really don't want the trees to be the focus, really, the real issue is about balance. I'm trying to figure out how to get the trees to look good without drawing too much attention away from the mountains, I never realized it would be such a struggle.