I wish I could see more of her face! She looks liks she's really deep on thought, which conflicts with the "fun" feeling of the scene. Nice and sharp and colorful though.
I know these kind of moments are hard to capture. The harsh light and the contrast between light and dark areas make it even harder to achieve pleasing effect. I loke the girl's expression of wonder and her hand stretched out in a gesture. But the image is overall a bit busy. The background is fairly sharp which makes it hard. Don't be affraid of shallow depth of field to isolate the kids from the background.
Cute photo to treasure in years to come. I like the lighting. I might have cropped out just a bit more of the tree(?) on the right edge, but still, a nice photo.
This is a fun, dynamic photo... good job with dof so you can clearly see both kids... I just wish that you had a better background... also I kind of wish the kids looked like they were having more fun... just my opinion.