During the SARS-COV-2 pandemic I began doing spiral art based drawings. Inspired by Jon Harris' YouTube channel. Starting with a Sharpie, paper and ruler it quickly into creating them digitally with open source software GIMP.
The pages are available for purchase at my Etsy Store (still under construction).
At first I drew them by hand, scanned them into the computer, and cleaned up the lines in GIMP. Eventually I realized it was quicker to just create from scratch in GIMP. The curves are illusions, all the lines are completely straight.