twiggy looks pretty nice, i'm just gonna point out a few things to watch out for:
there is a general curve to the center line of her face
her right eye is tilted toward her nose whereas her left is horizontal
her mouth is horizontal but her chin is tilted
her right ear looks cut off as if we were seeing her in 3/4
the left side of her upper lip is concave and the right side is convex
these are just minor things, and it does look like twiggy so good job!