Being a dad of a 3 and 6 year old, I am a sucker for tight face kid shots....
Love the expression in the first... spot on sharp and good color... but the face makes it! I am not sure if it is the camera that is getting that response or the thumb of the adult that seems to be almost pushing thru to back of the baby
On the second, the uplight / shadows is perfection for that look. Plus the B&W is the ticket on this one.
He must have been pretty patient as a "model"... I can not get mine to pose right now...
Same lens on the second shot ? What are you lighting it with?