This is my favorite style of map. the color of the paper looks great. I suggest blending the mountains in so it looks like they are a part of the land instead of stamps on the paper. some simple horizontal lines around their base should do the trick. I think tapering your rivers would help your map as well. Make them smaller where they begin and gradually get bigger as they meet the sea. I cant really see the forests to comment on them. Looks like a good start. Do you plan on putting any coastal lines in?