Kazu Hiro, while talking about his prosthetic FX work for Charlize Theron's face in Bombshell, provides an interesting analysis of how he's had to adjust Charlize's face to Megyn Kelly's facial proportions.
Hopefully some insight as to the sort of language and line of thinking for character art and face reproduction.
https://youtu.be/-m7VDy5N5vs?t=203