What is this? A redline is when one artist draws over another artist's work as a teaching tool to point out mistakes and give advice. These redlines were solicited by the original redline owner as a way of learning - and were given freely, no credit required. If you are interested in getting a redline, check out my weekly redline journal (usually posted on friday) to sign up! Rules are listed there.
I hope other artists are able to glean useful information out of this :3
While you are technically right that the chin does have flesh and not straight bone, that fleshy bit is there to help facilitate the movement of the lips and facial expressions in general. Just thought I'd add that.
uh *thinks* one is about to. I had a couple of people ask me not to post theirs (out of embarassment i guess? dunno) but I have one more to do after this one is uploaded and then i'm done for this weekend :3