EXIF says ISO 100, shutter of 1/6. Not nearly fast enough, and explains the focus & blur problems.
These would be cute, if they were in focus. EXIF also says max aperture is 5. It appears you're using a zoom lens on one of the shortest focal lengths. Like tirediron, I'd suggest using a longer focal length and f/4 or so, and increase your shutter speed, by a lot. You want to shoot people, especially babies, fast enough to stop motion, and 1/6 isn't going to cut it. If your lens doesn't allow for a longer focal length/wider aperture combo, which could be this case, I would have increased the ISO to allow the shutter to speed up.
Cute idea, and cute kid. I like the comp of #1 and #4 best. But since they're all blurry, I would have tossed them TBH.