Ahh it would of been awesome if that one girl in the bottom right wasn't blurred out. I like how the other parts are blurred because it shows them within action. The blurred girl is also right smack dab in the rule of thirds spot making me look there constantly.
I guess the little girl moving could represent her go go attitude but I find it distracting.
Other than that I really like it, good contrast and everything. It shows lots of emotion and personalities.