Lookin' good al-round ... but here my crit of it thus far.
The skin tones are nice and the scruff is a nice touch. I think the lips could be toned down JUST A HAIR. Really ... not much, just a tad. As far as the teeth ... from the pics that look fine as is ... maybe just add a wash to them.
Boba Fett just wrote a nice little tip on doing the eyes. You might want to check it out .... I'll have to search for the post link ...
Other than that, I think you're on track. I was re-looking at the jacket previously posted and it might be the lighting, but it looks like it could use just a tad more depth. But like I said, maybe the lights are washing out the shadows and I can't see them.
Thanks for the crit on the Young figures .... might just have to check them out. Keep up the progress .... it's coming along nicely.