Great action shot of that kid! Too bad he's not coming towards you and you can't see his face. Wonderful catch though... Personally I don't think that the kid on the right needed to be in the photo, and I think you could have cropped substantially from the top, the bottom, and the right. I'm not keen on your title... but hey it's not a big deal to me... I just wish we could see that boy!
I love the positions of the boy and ball on the left. The boy's off the ground position shows action and is, besides, very graceful. Very nice timing on this. On the other hand, the positions of the Dad and the littlest kid are awkward, with the little one almost hidden by the Dad. Two other problems: the horizon is a bit tilted and the composition, with the large adult in the centre of the frame, is flawed, in my view.