Full Tilt

If you're looking to up the "cute factor" of a girl, a very effective way is to tilt her head and feet.  It shows a reaction -- veers the drawing away from static neutrality and more toward "Awwww!"  As a compositional bonus, the inward-tilting feet create a "closed circuit" which keeps the eye moving within the pose, and the tilting head combines with the tilting torso to form a graceful arc.  See how far you can push this!