On this one the focus needs to be sharper and I think that the cut off head of the little boy was probably the wrong thing to do. It works in some cases but not on full shots like this one. Shallower dof could also improve the image by placing out of focus the legs in the background and the carraige wheels.
ok this is a typical snapshot.we got there wheels from a baby carrier, cut of the head of the kid, blutty bird, and then some feets. Good luck next time but this just does not work.
Nothing is really in focus here, and everything except the bird is chopped off. I thnk this one would have benefitted from shifting your position some and picking a spot to focus on.
Composition would be stronger if the head on the boy wasn't cut off and it wasn't such a tight crop on the right - looks slightly OOF overall. Pursuit is conveyed well here.