Thanks for all of your comments! I really appreciate them and after I fixed what was pointed out, I think it looks a lot better.
I gave the waterfall a souce (I think it looks a bit cheesy, but it's better than it randomly condensing in mid air), I completly redid the mini-waterfall (I really wasn't happy with it to begin with either), and I got rid of all of the canopy trees and smoothed that hill, along with the rest of the terrain around the river.
Once again, suggestions are welcome!