Nice shots, comments are on the last shot. You might try the following to see the difference:
1. The last one is by far my favorite.
2. Try halving your shutter speed or more
3. Take the shot in better light. At the golden hour. The sun is too harsh.
4. Move in closer, crop the top and left sides just a little.
5. The area at the foreground left is light, darken it with a graduated filter in LR.
6. Lighten the falls.
7. de-saturate the greens and push vibrance a little and sharpen.
Great shot.