It looks pretty good so far Arilayna, I really like the textures and the colors. The rivers look pretty good aswell, although the river on the east coast seems like it starts to come down into that green valley, and then cuts through mountains, which seems like the river would have to go uphill to do that. The valley seems to be a basin completely surrounded by mountains, and so it might be hard for rain to get in there to create rivers, which would also make it a desert. If there was a river running into it, it would more than likely create a lake or sea with no outlet. (Although Im not exactly an expert, I think thats about right)