Cool place for your shot. I don't know why, but I feel like it needs a bit of a counter-clockwise rotation. Tones aren't too bad, but I would have liked to have seen a bit more detail and texture to the shot. The rocks and stones have a rather "flat" appearance to me as far as lighting and b/w tone. I think this would be a great place to do in color. Hope this is helpful.
Falling water always a winner. Nice sharp surroundings. Excellent work. 2 ideas for possible improovements (only my oppinion). Off-setting the waterfall a fraction more to left. Obviously I don`t know whats on the right, but the ground seem to come down. This would open-up the picture. And maybe a slightly faster shutterspeed. Not much, just to make it a little bit less bubble-gummy.
Excellent time exposure to get the water like that. Overall exposure excellent. Picture is excellent! I have given the highest scores i have ever given in this challange because there are so many great shots, but you are my first 10!
I would have cropped out the sky. The trees in it are distracting and take away from the overall composition and mood. The sky is also blown out and it detracts from the image. With that crop, you have a rocking shot! Only a minor nitpick. 8.