Drawing the son/ amateur portrait artistry

I have not drawn people in a very long time. In fact, not since I was drawing Michael Jackson at age 11... I have done cartoons and fantasy portraits but no actual people illustrations...
And so I am just practicing and going with the flow on this one...
There are a lot of errors but thats ok.

This is the first progress picture:

And this is the second.

This is the third:

It hasn't taken long, but with two little kids I have very little time to sit and draw: the weekends (fri-sun) are family time, and the weekdays are like most other moms: me and the kiddoes (one or both) so yeah... All together this is about 2 hours work spaced out over 2 weeks maybe 3 (so far haha ;)

And we proceed...