The statue itself needs a little more defination, as it is lacking shadowing and depth. However the palm tree behind it makes up greatly for it. The tree gives the entire statue an appearence of a "halo" around the mother and babe much like many of the old masters have painted the MaDonna.
Your composition is very good and you might improve on it overall but cropping in at the bottom and cutting out part of the base. There seems to be a line almost created by the bottom of the trees and the placard of the statue. Cutting that little bit out might improve a little on it.
I love this statue/monument...being a mother myself I can relate..I love the way you captured the white marble against the dark greenery of the background..give the statue/monument more effect. Good job! By the way where is this...gorgeous!
Composition is fine. Would look better if you were able to blurred out the tree a bit. It may look like angel wings coming out of the statue but because the leaves have a lot of edges it distracts from the statue. Blurring should still give the same effect while still bring the statue more to the viewers attention.