This is an interesting idea, and there are definitely elements I like about it. Having the subject in the foreground, and placing the sharp foreground against the soft background can be a powerful tool.
I think background is not placed particularly well relative to the subject, I see some waterfalls back there but they do not feel to me as if you selected a viewpoint to place them carefully, relative to the subject. I think you were concentrating on getting the right angle on the subject, and just let the background fall where it would. And, I think this photo would be strengthened if you placed those waterfalls AND the subject in the frame in a careful relationship to one another and the frame.
The slope in the background is visually kind of busy, and the tones in it make the whole thing look kind of muddy and unpleasant. I'm not sure what to do about that. I might try burning the whole thing down darker? Or go the opposite way, and try to bring the tones and contrast up back there to make it look cleaner, somehow. I don't have any good solution here, only a problem -- I just dislike how the background slope looks!
A longer focal length would have helped here, to my eye, to make the waterfalls relatively larger in the frame, get rid of some of the background clutter.