Which is the Master?

In class we were given both these sketches to see which one was the master. The sketch on the left has a much more expression in the face. It is due to the combination of the eyes, eyebrows, and mouth showing greater detail of expression. Shading done in the left sketch makes the picture have much more depth and dimension; it makes the girl appear more real. The highlights used for lighting on the girls face on the left are much better used then the sketching on the right. One is better able to define where the light source is appearing from. The sketching on the left the girl’s face is better defined and completed giving the girl a better shape as a whole. On the right the girl's left side of her face is, to me, left unfinished and is in need of more shading and detail. Overall I chose the picture on the left to be the more superior and master of the two.