Your photograph has a nice abstract quality -- very interesting to see moving water behind the stationary branches. I think this is a very creative capture of motion, and might be a good study to try this same photo in the different seasons of the year. You could even try using the same shutter speed (1 second) and see if you can see a difference in the amount of water moving past the camera, depending upon the season of the year (more water flow in the Spring?).
Is there a way to change the lighting in this photograph, to make the branches more distinct? Maybe the light in early morning, or just before sunset would allow you to make the branches stand out more?
Composition's a little messy with all those branches, but the water has a nice dreamy look to it and the muted colors together make an interesting image.
This is intresting, but the only problem I can say is that I think it is a bit too busy. Too many suds. I think I can get a bit confused looking at this because in some areas it does not look like suds, it looks like clouds reflecting in the water.
This shot has a very light feeling to it - almost like an 18th century rice paper print of a Japanese garden. It would not do nearly as well with an object of focus - as it is, it lets the eye wander. I like it!
I'm having a problem with the blur here. To me it's way too busy and everythig is competing for attention. Although I do not have an idea of how to do it different.