Upload & Sell: Off
This forum really perplexes me sometimes. Two days and 181 views after posting, and nobody has taken you up on your request for C&C.
Well, it perplexes me, too. I just recently yanked out my post after one hundred looks within two hours and not a single comment. Really frustrating at times.
On a subject, though:
The picture is good as an exercise in pano stitching and b/w conversion, but the composition is confusing. A lot of white on the left pulls attention from the falls while they supposed to be the main interest. There are rules of third that are really helpful for composing, so per these rules, try to crop the left side to bring attention to the falls, and also try to bring out the structure of the water, because right now it is featureless. All the visual information you need is there, in your file, you just need to extract it in post-processing. Try highlights/shadows adjustment, should help.