Yeah the mothers face is hidden but the real star is the baby, so as a faceless portrait its sort of not true to the spirit of the challenge. I'm not a stickler for the letter of the law, so I'll let that slide by.
The image is nice and soft as it should be, but the only sharp element is the hair of the mother. That feels wrong. My eyes want to rest on the baby, but they keep getting drawn back up. The basic structure of the image is therefore a trouble to me. Its not an easy image to look at in that respect.
ah, in a portrait of a mother we see the baby's face. that says so much about her caring nature. A good wrapping sort of composition emphasizes this theme. 8