This is gorgeous. You captured a lovely area and a wondrous movement in the water. It looks so soft, like it's made out of fabric instead of water.
The green tones on the rocks are a nice emphasis on the water, providing a contrast. That contrast pulls your eye right in and never lets go.
I would, however, like to see the top portion of the image cropped out. The trees in the background, that is. They are very common and it seems too bright when compared to the foreground. Without them, maybe cropped into a square, I believe the image would be even more powerful.