I think you have captured the monkey very well indeed, especially its expression. Indeed, in my opinion, this would be a great photograph for a caption competition.
I like the contrast between the animate and the inanimate.
If I were to criticize, I would say that I do not like the background. However, by definition, as you were not able to move the inanimate object to a position in front of a different background, this citicism may be a little unfair. You have tried to make your main subject stand out by throwing the background out of focus, however I would suggest that the background could have been more blurred, perhaps in post-processing?
If I were you, I think I would have tried desaturating the background, obviously in post-processing, to introduce colour contrast with the main subject. And I would crop the right-hand side of the photograph.