Ok well it looks nice for a first try. Maybe a few more environmental doodads though, and perhaps you should use the dirt and rough dirt tilesets for a road going though the river and up the hill, because it just seams to me like there just should be a road there.
Also some animals would add to the terrain, so just a couple of random animals somewhere in the terrain I think would make it look better. Also the middle of the screenshot looks a bit blank, try adding some rocks and other things to it.