All of them look pretty amazing. Really nice done!
I like the head of 8 pretty much! (Would put him instead of 8 of 3rd pricture) would like 8 as thrower here!
Also 9 is amazing! I hope you take different styles for different areas! Maybe 9 could be guard of a temple or something.
As a basher I like the guy of the progression exploration picture pretty much as he is! amazing! I want lvl 5 as my home guard. Can I? Pleaaaaaaaaaaaaaaaaaaaaaaaaaase...
In anyway, try to implement diverse of those skins. There are too many good looking to keep them away and decide for one!