Hi Dave,
I like it a lot! For my opinion nothing is bad about it, I'm not 100% convinced by the central framing AND the (your) kid in the sea, it might have looked more balanced with the child sitting on the sand to be off on the left hand side a bit, and the child in the sea to more central.
Or you could clone out the kid in the sea to restore balance, this figure is a bit small to add much to the scene anyway...
Not sure if that's what you're looking for in the way of crit...?
Hope it helped anyway!