impressive. The mountains are especially nice, and the rivers merge quite seamlessly into the oceans. The only thing I might look at are some of the angles in the rivers - here and there are, the rivers make very sharp turns, and sometimes even seem to loop back in on themselves. Without some more geographic information (cliffs? canyons? etc.), it's hard to tell if the rivers are "forced" into those channels. Hard granite cliffs bordered by softer rocks could produce those sharp angles, maybe, but it's something to think about.
Other than that one little thing, though, I love this map! Right now, the amount of "political" details aren't too much, and work with the level of geographic information.

- Kes