Started today. Drawing is about 30 inches in diameter. This is the outside ring, there will be at least 2 more figures in the center. Black ink plots are complete, have about twelve more red ink epitrochoid plots to draw. Am using Copic Multiliner SP pigment ink pens on this drawing. The pens have refills so I don’t have to throw the pen out when the ink is expended, just pop in a new refill.