I'm not sure how much else I can add... see, the amount of faults pazazz has pointed out kinda makes pointing out more pointless, cause well... everything else is off CAUSE of those things. besides, being told what's wrong doesn't actually fix it in a way you understand. What you need is to start over, and focus on making those proportions correct. http://cedarseed.deviantart.com/art/Express-guide-Figure-drawing-11939496 If you read this tutorial, it'll help, but if you're really serious about art and you want to become alot better at it, I can suggest some books to purchase, including the book that tutorial was based off. I learnt to draw from the same book ^^ That tutorial is a VERY boiled down version of Jack Hamm's 'How to draw the head and figure' (Except they modernised the art style XD the book has an old school art style XD ) It's a very concise book thoguh, and I haven't found a better book for a beginner yet ^^
In the mean time, post a WIP of the new drawing, and we'll see if we can help you more from there ^^ Start on a new fresh page though!! You'll be able to compare beter that way even if you have to sketch your old drawing out again first.
She seem like a lovely character. Her proportions are way off. Her head is way too big for her body or her body is way too small for her head. Her elbows should hit at her waist and they appear to be up too high. There are many really good tutorials on proportion available on-line that may be of some help to you. Thanks for sharing this with us.