I like it, I think you did well. It would have been nice if the sky had given you more color for your sunset but there's nothing you can do about that, we can only work with what we're given. At least you got some interesting cloud formations. If there is anything that I would change at all (and this is really just a matter of personal preference), I probably would have used a faster shutter speed so the movement of the water was stopped in motion. I know you probably intentionally used a slow shutter speed to have the blurred water effect but I personally prefer the milky effect with waterfalls and streams and (typically but there are exceptions) my ocean scenes like this with the motion stopped and clear. Again, that's just me but I think you did an excellent job.