This is really good, especially if it is the product of such a quick and relaxed method. I really like those mountains, and the style of the forests. And to top it off, I love the simplistic yet effective compass and title box. You should definitely try this again.
For future reference, though, the areas I can see for improvement are the rivers (the light blue doesn't quite work, in my opinion), and the overall shape of some forests (the ones in the top right I don't like, the big one in the lower/central left is brilliant).