Welcome aboard, Sular! and a great first post.

First off - Love the rivers. Great shape, nicely merging, following the terrain, and widening as they flow downstream. They might be a bit on the wide size, but the map has no scale, so that is just speculation. Always a trade off on this type of map between scale accuracy and conveying information. The rivers also get a bit lost in the forested areas which could be due to colour choice. Lastly, consider a slight pillow emboss on the rivers so they seem to sit into the terrain, and not be painted on the terrain.

I'll echo Don's comment on the transitions being a bit harsh. Along with thin might be to try a different texture for the hills. Currently they come across as small mountain ranges. Perhaps they are too "lumpy"?

Finally a question - why the tipped orientation - not North up? Since the landmass is clipped off, I can't think it was to maximize the image on page size...

-Rob A>