Huh Your bang on About the Scar its good! and About that symmetry is a little off if you Draw a line From the bottom of her jaw and up to the tip of the Skull then draw a separate line from one side of the eyes to the end of the other side I think you'll see Were its off in places. But all in all Great work.
Ps.
I Know her head is Tilted.
Its a hard Angle to get right.
(:-D