Such a cool use of PCA (and other viz tech) in art by @schichmax and colleagues!
We did something related applied to Roman wall paintings with
Kelly Mecclinton 's yet unpublished dissertation "Computationally Modeling Roman Domestic Art and Architecture".
https://epjdatascience.springeropen.com/articles/10.1140/epjds/s13688-023-00397-3