I wasn't really happy with the portrait so I posted it in the Wet Canvas Portrait Forum and Ken Tiessen gave an excellent critique and showed, by photos, where I was off with the drawing. So last night I worked on the portrait until 1 a.m. and it looks much, much more like Lawrence.
As can be seen in the comparison, I widened the width of his jaw and neck just a bit and narrowed the shape of his forehead. Also narrowed his eyes and raised the right eye just a little. I still need to raise his left nostril just a tad but overall I am pleased with the resemblance.
I know Lawrence will definitely recognize himself and think he will be pleased with his present.