I thought the first couple were, uh, pedestrian. and then you kick it into 3rd gear, then 4th, then overdrive... what a great set. love the comps, the angles, the colors... I like all the light in many of the pictures. getting underneath kids... cool effect. how'd you get these? live view? chin on the sand? (see 14, 19, 20).
and just a semi-random observation... you seem to lean heavily to having your subject being towards the left in the frame. crops leave more room on the right. #19 is a notable exception and that might be why I like it so much, helps provide balance to the set in this way. thanks again for sharing, Ii really like them!!
My favs are 10, 15, 18 & 21.