The neck is not toned I know. I guess I wanted to keep focus on the face, maybe. The double pixels do look weird I know but I tried fixing it in one version of this and it didn't look like me so all I can say is that is the way I look. I think the color would be less visually disturbing if I had a palette that was realistic and less saturated.
The neck gives a feeling of unfinished. And I found strange the double-pixel steps you use on the face… (I don't know if you understand what I mean). What about using some dithering on the skin ? (even I'm not big fan of dithering, in this case it could be great)
You look like LaMarcus Aldridge.(: