What impression do they shots make on you? (i.e. what kind of person do you think is presented here?)
you've got a good range - the standard you (4), something a bit more dynamic (2), a smiley one, and a younger/dorky one (5).
1 does the same job as 2 but better. fun, quirky.
3 is a good one, can see you as clever baddie.
4 is fairly mediocre, catch-all.
5 and particularly 6 are good for a younger, even more quirky guy.
the first 4 (with the beard) really make me think of history. they remind me of the sheriff of nottingham or a roman soldier. the 3rd one is a really good villain, cold and calculating.