Meets challenge well, the focus on the first gymnast is very clear. Not a great fan of the composition, however, the rest of the image seems distracting.
A lower angle shot here would have done this much better, though I know we can't always get in just the right place when we want. A slightly different crop here may have worked a little better, as the feet sticking in the shot on the right are distracting, though I know you wanted to get all of her feet in the shot. Play around a bit with it and see if cropping it just to the right of her shoulder works any better. (6)
I appreciate the purity (i.e. avoiding artificial DOF enhancement), but this one could have benefited from the gradual blurring. Still a good take on the challenge.
I don't think that the DOF is thin enough for the girl in the front to be singled out. The composition is a bit lacking: the legs in the right side of the shot clearly should not be there.
This is a great shot, she looks so uninterested in what she is doing! The colors are great and so is the exposure and focus. I will say that the boys feet are distracting, therefore it might look better with a different crop.