Ahh ... I just looked back at this thread and saw Zero's post that appeared just before mine. One difference immediately struck me as interesting: Zero actually narrowed the girl's face using the liquefy or some similar tool, whereas I only suggested narrowing visually by essentially applying digital makeup and darkening both sides of her face. I did, however, conventionally narrow her shoulders and body a bit, to match the narrower visual appearance of her face, though.
I think that if I did this again, I would use a combination of the two techniques, a bit of Zero's physical narrowing, as well as a bit less of my shadowing.
I also *really* liked Zero giving her lips a nice smile, whereas I didn't touch their shape. OTOH, I think that it's really important to deal with the uncontrolled lighting that always happens in situations such as this (unless this really was a Halloween Zombie dance, and pale, greenish skin was wanted, LOL).
T