Just a few things I think. Here eyes seem a bit close and her stomach is a little long. Other than that I think it looks pretty good for starters. 
Eyes are hard. Sometimes they might look like they are looking at 2 different things. If you have trouble with eyes, try drawing nothing but eyes until you feel like they look good. The length of the body makes me feel like this is a picture of a elven character. if the ears are round though, I'd still say I'd like it because it may be a half-elf. I've always loved half-elves since back in my D&D days before PC games ever came out.
Ah, to actually act out your character with other people in the room and letting things flow. those were the days.
not elven, although I thought the same thing last night her torso is just too long. always had trouble with faces and I don't think the angle is helping me much either. but Thanks to you both for the differnet perspective.
Started adding in a few details; I think she's starting to get there
Updated Fallconess
Nice! Keep it going!
That's looking great!
I like it... If it keeps moving along like this, I might have to bribe you for some comish work 
ok shameless plug and another update more details and shading face still isn't working *shrugs*
Coming along great!!
"City of Heroes. April 27, 2004 - August 31, 2012. Obliterated not with a weapon of mass destruction, not by an all-powerful supervillain... but by a cold-hearted and cowardly corporate suck-up."
I think she's done (well for now at least) 
Thought I'd throw this up here and see what you all think.
It's the start of a sketch of my Defender and namesake.
*deepbreath* Fallconess
Thoughts and critiques more than welcome. I can see a few changes I want to make and a fresh set of eyes is always helpful.