That is a reasonable point, but a lot of painters try this. TBH: I'am more afraid to use TMM on busts than I'am afraid of using NMM. -.-

It always comes down to our individual tastes and preferences...whatever works for you...for me personally...TMM works best...but I freely acknowledge there are some superb artists out there using NMM.
Ron

Having seen it for the first time in the flesh at Scale Scotland my feelings are mixed .
It was well done but its not quite right and in some instances just looked like heavily shadowed yellow and grey paint , the skill to get it to where it was is indeed high and it does photograph better than in real life . If you can hack metallic paints then for me they look better.
Again its in the eye of the beholder

Manga comics come to mind