The greenish reminds me of one of adarias's portraits. Inspired by 'm?
Lower right is my fave :D
I think the jawline of the woman is a little too dark, only crit.
In Germany, left is right, and right is left.
(sorry, ptoing!)
I like these, the features are well defined. I agree with Ptoing though (if he actually meant the top right instead of top left as mentioned). Maybe if the green was less saturated and a tad bit darker it would look less out of place.
Heh, the woman's pose reminded me of this (Who takes a picture facing the other way- almost):
http://www.youtube.com/watch?v=a91eiu_eer4
Anyways the angle on the hat doesn't seem steep enough, but I like what you did. Is there a certain color restriction you went for?
These are very nice.
The only thing that looks a bit odd is the greyish/green ton on the top right dude. It looks like colourchange for the sake of colourchange.
maybe, not consciously. a poor palette decision regardless.