Pretty nice shots, though there are a couple of issues:
The major issue for me is the blurred branches, looks to me like your depth of field was a bit short or you've got a bit of diffraction and movement blur. Most people (incuding myself) like to see good front to back sharpness in shots like this so making sure you have used a small enough aperture to have everything sharp from foreground to infinity, yet not soo small diffraction becomes an issue(ie below f18), and have a fast enough shutter speed to freeze everything, with the exception of the water. Personally I'd rather see sharp branches and no blur in the water than the opposite.
The second shot is the best compositionally but the 3rd has the best water where you've got the shutter speed bang on to keep the water a little blurred but still with a lot of structure and the interest of it smashing against the rocks for a bit of drama.