I've rebuilt the face from scratch (nearly), so I thought I'd give some poses a whirl.
Whirl as in try, not whirl as in 'Autobot twice voted most likely to defect'.
I haven't built him.
(Points for naming the feeling being expressed in each pose)
(Seriously, I need to make sure he's emoting in the right way)
(Oh yes, and I don't own Transformers)