separated at birth = elective affinities

I was looking at the September-December 2019 issue of Visual resources, a special theme issue on "Art and the periphery: in memoriam Foteini Vlachou." Vlachou died in 2017 at the age of 42. The obituary essay in the issue included a mention of her blog - https://iknowwhereimgoing.wordpress.com/ - which is still available, without new entries. I went to look at it and was intrigued by her series called "Elective affinities" in which she did about three dozen posts with a pictorial comparison or reflection. The last one, done two months before she died and marked "hors série," was a book cover for Estrela solitária by Ruy Castro compared to the Barberini Faun.

"Separated at birth" just seems so mundane relative to "elective affinities" and "hors série" is pretty esoteric too. Still, I really enjoy doing my "separated at birth" posts and won't appropriate "elective affinities" though I'm really glad I found Vlachou's posts. She credits the comparison to Arthur Valle who used the juxtaposition on his Facebook page.