You are getting a grasp of CC3 I see. Nice work so war. I have never done political boundaries so hopefully someone else can help you. They do need some more work.
Some more suggestions:
- Put some fills under the mountains and hills. Under the hills a darker grey for example. The political fills now come through your mountains and that detracts from the "mountainy" feel.
- You might want to add an effect like a glow to the cities and towns.
- Watch out you don't put to many types of trees together too closely. The normal trees with the palm trees look a bit unnatural to me.
- The northern continent has a river that wouldn't normally be there I think. One river runs from the mountains to both the see and a lake? Or the lake is on higher ground of course, but your map doesn't really show that.