Another phenomenal shot. I love how you captured the waters motion and flow here. I've never seen flow captured quite like that before. The sky is exquisite, the soft grade is beautifully captured. I also think the overall warm tone is quite pleasing.
If I were to make any suggestions at all for this excellent piece, it would only be one thing. Capturing the flow of the water around the rocks is genius, and if that effect were heightened just a bit, or made more visible, I think it would be very intriguing, and would add to the impact of a shot like this. I like how the little spots of bubbles around the bottom edge are clear and not motion blurred, and if there was any way to keep that while capturing more of the waters motion, that would be absolutely perfect (but it might not be possible.)
Overall, superb work! I love it. It is exposed very well, and is a very interesting scene.