Nice sketch! I suspect once you get photoshop under control, you'll do wonders with it

Photoshop has a nice "clone stamp" tool that I use a lot for full color such as trees. I'm sure you can find a tutorial for it on the web. I just make a few and save them, then when I want them, I clone stamp them into the map. This is an example of a map where I used the clone stamp for trees: http://www.cartographersguild.com/al...chmentid=71042