Not so bad! The pose looks interesting - perhaps she's in the middle of a twirling dance, and I can see some nice detail work on her hands. You've used shading fairly well to suggest shape and lighting.

However (pardon me while I find my Scalpel of Criticism), what's up with that hair? This is big, big hair, particularly the bangs in the front. The arms appear small in relation to her head and body, though the hands to arms proportion looks fine. Also, the left ankle appears to taper a bit much - we wouldn't like that foot to break off! If you can address these concerns I expect your sketch will look 50-100% better.

If you don't mind, I also have a small suggestion for improving your image's chances for popularity. Some may call it crass, I call it Fan Service Opportunity - twist the girl's hips a little counter-clockwise! We might not see her bosom, but those of us who appreciate such things will appreciate a sideways shot of Melfina's behind. Feel free to follow or ignore this suggestion as your muse guides you.

Anyhow, nice work so far, and keep us posted!

Thats a nice sketch with nice shading but the head seems a bit big compared to he rest of the body.