First off, let me start by saying that I love H.D.R. shots... and when you combine it with long exposures of running water the results are extraordinary, (that is if you have the skill to do it) your shot is just that! I love High Dynamic Range images because they always look like some very time consuming form of traditional art, the pastel colors and surreal gradients and shades that are made a beautiful. Your image doesn't disappoint, the glassed water which is so common in waterfall pictures is perfectly exposed and the composition is pronominal. To top it all off, the interesting angle you choose to take the shot at really helps it be unique compositionally. Amazing colors, great eye, awesome choice to do H.D.R. Fantastic work!