Her hands look so big because they are in front. If you had pulled out a bit I don't think they would have looked so large, bit I like the closeness and the facial expression. I just can't get past those hands. Maybe if they were not lighter than her face they would not jump out at me. It is still a nice portrait, but it would have been better without hands
Nice composition. It works very well with the square. I like her expression with the hint of a smile. Most of the expression is in the eyes, which are the focal point ofthe image. The lighting is almost flat, but with a tiny, harsh shadow by her nose. The light source seems small (on camera flash?) or too far away and a bit too harsh, judging by this little shadow and the small catchlights in her eyes.