Can't believe there are no comments for this series.
I like all the photos, but number 1 is a bit special. The mothers expression speaks volumes. You've captured it perfectly.
Number 2 reminds me of the tv series Friends for some reason!!
I think Speedtrap was refering to the extended leg by the child the mother is holding.
I'm assuming that "one of your favorites" is #1. It is a very sweet and touching image of mother and child, but I think a lot of detail is lost on the childs head, whereas it appears to be a white mass with some fine hairs showing at the neckline rather than a thin fair-haired infant. I'm not convinced that having them centered in frame is best. Also, have you considered a portrait orientation? Centered may work better with that.
The photos of the family is a very nice series and they should be happy with your shots.
What were your weather conditions like? Was it overcast or did you shoot it in really late day sun? I only ask because you are obviously not in open sun.