The mountains looks pretty ok and they aren't following the usual fishbone pattern. I especially liked the erosion on the top of the mountains.
The forest trees seem to be a bit detached from the map, so you might want to change them to integrate more fluently to the underlaying terrain. I recommend removing the bevels and highlights, as forests seldom have that glossy touch (if ever? ).
The general layout looks good, but the rivers on the top left corner are crossing with the roads quite many times, you might want to fix that. Good start I'd say.
EDIT: Oh, and try having a small tilt on the field texture near the cities, so that all fields of the map aren't aligned the same way.