This is my work monitor which is set to high contrast, so most pics don't look as good as they otherwise would. So this one looks a bit too contrasty; I would also say it's slightly over-sharpened.
What's even worse though is what looks like JPEG artifacts on the face. I'm guessing that the square-ish aspect ratio and the sharpened picture resulted in a large file size which forced you to save with a low JPEG quality setting to meet the size requirement. On this contrasty monitor, it kind of shows.
As a suggestion, maybe sharpen the tree less? It both kills your file size and distracts attention from your subject...
I wish you were a little more close to the monkey. The trees to the right are very distracting., My eyes want to drift away from the subject, however, on another note, I think this is a great capture and find. Be very proud.