I'm probably going against the trend here, but I have to say I think you use too long shutter times for your water shots. You have a few that use 1/5 and they look very nice, but using 4 and 8 entire seconds makes the water look like undefined white goo - like smoke. It doesn't look like water anymore.
It has a certain surreal, dreamy charm of course, but if you are attempting to convey the rushing flow of water between the rocks, it doesn't really work for me in this particular instance.
