If you would like to learn more about the project and how it was made, you would also be delighted to hear that The Rectoress was initially created for Ivailo's comprehensive tutorial published via WingFox. The course describes the entire working process behind the portrait, with the creator sharing different techniques for capturing the likeness with a simplified sculpting approach. You can access the tutorial by clicking this link.
And here are some of the renders shared by the author, you can check out more by visiting Ivailo's ArtStation page.