Great Work - I especially liked your timing on many of these (the "swing and a miss" shot, and the "pencil plunge" shot). Also love the point of view on the water-ski towing shot. You really do a great job of conveying action and energy!
For the most part the shallow DOF works , but on a fewshots, like the very first shot of the toddler walking down the dock would actually be stronger stopped down a bit.
i really like these! the images have a great lively feel to them in content and processing!
if i could offer one bit of constructive criticism is that just about every image is center composed. i have nothing against center comps, but when presented as a set, the placement of your subjects in the frame can get a bit repetitive.