I personally would consider cropping off the top on this image, right into her head (probably just leaving the bangs and the very edge of the hairline. It has the benefits of eliminating the distracting bright windows at the top, as well as the pigtail rubber bands. It also moves her beautiful eyes up higher in the frame. Your light source seems either a little too small or too far away. The shadows under her nose and chin are too harsh and well-defined. THe light is posistioned very well, though, coming in from the side and a little above. Very nice skin tones and wonderful blue eyes. What a cutie!