Great, fun shot and it's nice that they all have a smile. The mix of lighting is handled nicely. I think it could stand to be a tad brighter, if that is possible without completely losing those highlight areas. The symmetry here of the trees in the background gives a nice sense of balance, but the whole shot seems slightly tilted counterclockwise.
Dappled light is not the first thing that comes to mind... A fun photo but the background is a bit too messy. Maybe a bigger aperture would have made this even better.