Update:
LINES AND ARMS!
I know the perspective isn't quite right on her raised arm. Some help there would be appreciated! Do the breasts work with the style I'm using or do they still need work...? How are my lines? Sorry, Helm, the "squiggly noise contours" were not intentional, but rather the product of my trying to sketch with a trackpad! Not fun. Thankfully I've relocated my tablet!
Some notes about where I'm going with this:
I want her body language to communicate shyness but at the same time a kind of subdued playfulness. Her hair will be longer and cascading over her shoulders some. She will be clothed (I'm almost sorry to say), wearing a form-fitting t-shirt and short, denim shorts.