Not bad, I like them.
First: You need more environment doodads! Why do people seem afraid to use too many! Also your light rays suggest sun, but the fog and sky don't match. I guess it could be a break in the clouds?!
Second: I really dislike the yellow fog. Other than that it's pretty good. I think the rocky hill/mountains look alright, but not as good as if you used spire. They just look better IMO (for mountains).
Third: Looks nice, but I can't really see anything, so I can't complain. I do notice a waterfall doodad in the middle of the screen, not sure what it's doing, looks like it's not attached to any waterfall.