I like the facial expression!
This drawing is very good! The shading and body shape are amazing, and I REALLY like the facial expression, which comes across more as sweet than just something to attract pervs D:
Someone below me mentioned something about funny looking lips, but I'd have to disagree. The lips do seem to be in an unusual position, but it isn't so exaggerated that you can't believe a person could physically make that face.
I can't draw girls very well, and I don't want to sound perverted for saying this, but I've been tracing over this character's outline to try and get the body shape right XD
My only suggestion would be a bit more detail in the texture of the hair, but I have nothing to complain about if you leave it the way it is. Great work here! :D