I like the long shutter speed here to mist out the water. The colors look more saturated that way. Did you have to use a ND filter or some such to achieve this, or was it taken closer to dusk/dawn? I really love the composition and how this is coming at us. It's a really great pic. 10
This is a beautiful photo, nice long exposure which gives a feeling a movement. One suggestion I have is to perhaps try flipping the photo horizontally. Alot of people here make a big deal about having things flow from left to right. Perhaps give it a try and see which one you like better. Overall, a beautifuly done picture.
I actually miss Utah now. I grew up there... and now I'm in Hawaii. And I miss Utah! How odd. A very well-done shot. And I guess it would still be effective if cropped for a magazine. You lucked out. Very nice.
Personally I do not consider magazines to be in a horizontal shape... thats just me though. Beautiful waterfall though! Not sure where you would put the type. As a photo its very nice, but as a magazine cover, it just doesn't fit IMHO. Sorry.