It's mentioned in the article that this is a (really good!) painted version of The Torment of Saint Anthony, an engraving by Martin Schongauer.

Michelangelo would go on to find his first patron, a Cardinal named Raffaele Riario, by forging a sculpture and artificially aging it (which, back then, was a conventional practice to demonstrate expertise and skill: https://www.atlasobscura.com/articles/how-a-forged-sculpture...)

Dishonesty aside, both stories are reminders that there's a power to doing stuff with your own two hands (not genning it), as well as not to let today's emphasis on originality take away from using imitation/transcription to practice your craft: https://herbertlui.net/in-defense-of-copycats/