I might have found something (related to my recent research on shape/value/edges/brush stroke, read previous post).
I recorded the process; I'll have to analyze, take notes, and see if I can replicate on a scene more complex. If the video is not too sketchy, I'll post the timelapse on the video channel too.
Update:
I just uploaded a video timelapse accelerated (1min38) and sources of this artwork:
→ Src (kra): https://www.peppercarrot.com/en/viewer/artworks-src__2021-10-10_Pepper_by-David-Revoy.html
→ Ytb: https://youtu.be/juRt_uCJDvY
→ Ptb: https://peertube.touhoppai.moe/w/qzv6S9FBJH4XXaY1D6zYA2