Well... I'm afraid to me, these don't look like they should be session images. The top is soft, and rather oddly composed for a child's portrait; remember, there's a reason that the vertical orientation is referred to as the 'portrait' orientation. To me this one looks like a "Mommy's moment captured with a cell phone" shot. The lower monochrome has an interesting epression, but more in a fine-art shot rather than child's portrait sort of way. This one is soft and VERY noisy. The colour image is cute, and IMO, the strongest of the three, but it too is soft and very noisy, and I think would benefit from the the removal of some of the empty space above the child's head.
If these are 'for a friend', unpaid shots, they're fine, 'though you do need to sort out the noise and focus issues. You don't by any chance have a cheap, UV "protection" filter on that lens do you? If these are paid, commissioned shots, I'm afraid I wouldn't be overly pleased to receive them.