I saw this photo in one of my knitting pattern books ... I usually shy away from profiles, but I'm attracted to ones like this: where a big knot of hair at the back of the head forms a visual counterweight to the head ... Reminds me of Renaissance portraits.
I was going to leave the background white, but I was trying to "fix" or refine the under-nose/lip line.
How many times do I tell myself, Don't "fix"? But I don't listen.
Maybe a little darker behind the neck?