Since you had asked how you could make these better, here's my 4 cents (2 for each opinion)
1) If you look at pics 1 and 3, what is the most prominent single piece of the image? In #1, its the broad, non-detailed cheek. In #2, it's the crown of the baby's head. (note that both of these 'pieces' are at the powerful 'thirds' point in the image.(read up on Rule of Thirds - its not really a rule but a suggestion)
Your point of view has made these less interesting features into the centerpiece. So, my advice is, look carefully through the viewfinder and make certain that what you consider interesting in in the prominent part of the image.
#2 -the baby's face is framed beautifully by his hands but there is lots of extraneous stuff around and his face is in the absolute center. I would have cropped, in the camera or out of it, so that the composition is much tighter.
One needs to exclude what detracts from the image.
The baby is cute - but that has nothing to do with whether it is a good picture or not. Don't get waylaid into loving an image because you love the subject.
Learn to look critically at a picture and define what you wish you could have removed or added to maximize the impact - and then try to make it happen.
I hope this is understandable and useful.
Lew
PS. it is my opinion that, more often than not 4 x 6, the native aspect ratio of most cameras, is
terrible for most pictures of people. 4 x 5 seems always to be better - filling the frame more. There are exceptions that I am certain that people could demonstrate but I tend to love 4 x 5 and hate 4 x 6.