Just an observation, make what you will of it: pretty much all your characters have a weak posture. They are hunched over like an old lady with a bad back and their heads are thrust forward. I get the impression that they are a bunch of introverted emo kids with low self-esteem, kinda. They also tend to be a bit floatey and tip-toey (are those real words? heh) and don't portray a good sense of weight. I don't know what you want to portray exactly but if you want some of your characters to convey a sense of power my points would be worth considering.
By chance, this character is a bit introverted and has relatively low self esteem, but that definitely was not in my mind making it. The floaty aspect definitely was, though. Something something "light as a feather."
Is there a part that demonstrates that more than the others? I mentioned the legs were all but traced, but do they give off that impression more than the torso does?
I think there's a lack of sharp angles in the anatomy, the limbs are very noodly and rounded..
I'm getting that I should commit more to 75-90 degree angles from this. I tend to think that makes it look a bit blockier and unnatural, but I might as well give it a shot if you believe I should.