For your anon: Stevie's eye makeup from back then was quite a popular style back then and there are many guides from 60s/70s fashion magazines on how to do it. It was a revisit of 30s styles and became 'in vogue' again during the 60s. You can find pictures of stars in that era like Audrey Hepburn, Sharon Tate, Edie Sedgwick wearing very similar looks. It most likely became popular mainstream then due to Twiggy, who claims she got the idea from Pattie Boyd, who did her eye makeup like that.
Thank you anon, this is really cool. :)
I’m going to try to find time tomorrow to watch the documentary again and post her exact quote too.