Okay, you guys were incredibly helpful last time I posted something here, so I've got my fingers crossed.

Not looking for critiques on the boring composition (there's more to it, I just isolated this guy) or the angle or anything like that. Or on the vaguely bananic punching bag.

My main question is this: character throws a fairly hard punch. Guy is obviously built. His hair's lightweight and if he were holding still, it'd look roughly like it does in the handy upper-left diagram there. Also wearing a long necklace.

So. He's throwing this punch with his left hand, leaning into it, putting some force behind it. Would the hair and/or necklace reflect this?I actually tried to simulate this myself and the necklace did lift forward for a split second, but my hair's too short to do that part.

What does /ic/ think? Would the hair whoosh forward with the punch, or whoosh back for some reason, or just hold still?

Crits on the anatomy are also welcome, I used a reference but I've still got a way to go.

tl;dr: hair. motion. how?