Coddling is bad.
I may sound kinda mean, but I think it looks horrible. You can do better.
Now, it looks like you're going for a slightly Anime-ish style (if the eyes are anything to go by).
The Head in particular seems to be where you need the most help (the rest is good for a start). First, her neck is far to short and wid, and her shoulders a bit too rigid. Try increasing it's length little by little in later sketches till it looks right to you.
You've also put too much space between the eyes and mouth, and the nose is a bit too large. Apart from making her look bean-headed, this has the side-effect of making it look like she has no forhead. The eyes should be lower down the face (Think: A hair above the middle. Just a hair.) The mouth could be a bit closer to the nose as well, while shrinking the chin.
The hair...Well, I can't comment on the hair atm, because I can't pinpoint exactly whats wrong with it at the moment.
The legs are bent a bit unnaturally, as theirs nothing really there to indicate its bending forward. This kinda gives an effect like it's been broken.
As for the Wings...well, if they were meant to be Bird/Feathered Wings, you messed up. I know this may sound boring to do, but try showing the individual feathers. It'll really help. Also, the feathers shouldn't be quite
that pointy. It's got way to many sharp edges, whereas Bird wings look better with a slightly more smooth and curvy approach (here, I'm talking about the Wing Joint).
The Gun is a completely different issue, so I won't go into that.
So, all in all, what Marauder said.
