I see a lot of people saying they like the 2011 version better, which I agree. It seems you dropped and amazing was of color and lost all connection to anatomy! I see you went from a distinct style to one that is more "anime" based, which is not exactly original!
Wouldn't you rather have your own art your own style or one that's been used by over millions of people?
Okay now onto anatomy.
You even lost you understanding of anatomy! The anatomy on 2011 was a lot better in proportion.... Not to mention the thumb on 2012.
Take your left hand and bring it to your body, where is the thumb? To your chest not on the outside.
Why did you change how you color? The other style looked a lot better! Some parts of 2012 don't even look colored... And the blocks in the hair aren't natural.... When light shines on your hair is it like that? I hope not.
Maybe you could combine both styles? Or try to revert back to the 2011 style.