Hmmm
I don't agree with the whole face being of clinical significance to quality of Shen at all. I suspect that most practitioners wouldn't agree with it at all. Shen Ming is after all the qualitive sparkle/whiteness in the eyes which is considered the obvious and primary symptom of Shen or lack of qualitive Shen.
The facial muscles don't, by and large, indicate Shen at all. Someone could have very welll refined shen but have Bells Palsy or some other facial paralysis, but you would just by their face denote them as Spiritually flat would you? Shen should be whole bodied manifest as it would be apparent in your actions, attitude, speech etc that one's shen was refined and abundant but I have never heard of the whole face being the significant indicator on a physical level at all.
" Don't confuse yourself with someone who has something to say " - The Fall
" I do not like your tone/ It has ephemeral whingeing aspects " - The Fall
" There are twelve people in the world/ The rest are paste " - Mark E Smith