[allmendream]

No art expert - but I have seen enough religious paintings that a young woman holding a child greeting another child is almost ALWAYS - Mary the Mother holding the Christ child meeting John the Baptist as a child.

[mnehring]

I wouldn’t say always (just because I don’t know) but I have to agree with your observation. It was a very popular subject. Adding in the lamb and the old child (John?) holding a staff which he is usually symbolized with, I think you are spot on.

[Kirkwood]

Also the woman in the painting has a halo. I'm not sure if Mary Magdalene was every represented with a halo.