I have a minor nitpick, but it's one that you may already be aware of and will clean up in the next stage(s): The 'back' part of the forests - the side that faces away from the viewer. Right now, the length of the sketched in trees at the forest border (for lack of a better description) is the same as the front side, giving each woodland the illusion that it is a fence or a hollow bowl. Does that make sense? And like I said, it may be corrected in later stages anyway.