I like the bright colors. Seeing more of the baby would have been a bit more interesting I think, though I know with little ones that is not always possible. Also, if the red continued around the bottom it would look more complete.
I'm not so sure it's possible to have candids of babies in the same way that you can't have a candid of your cat. I don't think the baby has any awareness of what a camera is. Step out of your comfort zone and get some photos of strangers!