#1.. framed way too tightly! By the time they frame it, the babies face is up against the edge of the frame!
#2.. sort of works, but way tight... good choice of aperture though
#3.. why didn't you shoot vertical and get mom too.. that would have been a beautiful photo!
#4.. cute.. but a bit more dof, and his left hand would be sharp also... like his right! Kind of throws the balance off.