I expect most newbies to cut off limbs, which you didn't, nice job there.
Not sure on the tree in the background and if it adds anything to the image. Why did you shoot with it in the back instead of a different angle without it?
I find the pose and smile forced. Getting something natural from children is hard, I know, but the forced modeling is hard to get them to do. Watch the head placement and the arm placement when directing a model. The hand seems to be squishing onto the chin.
I really do like the chair mixed in with the greens and nature look, as well as the choice of dress (if it was a choice)
Thanks for the great comments ya'll. I see what you mean about the tree. Excellent comment. I would have never seen that ...but now through your eyes...it does become an eye sore. Thanks.