Mini study 2×2

A friend gave me some pre-cut mats, with a 2 x 2-inch opening. I’m a big picture kind of person, and scaling my marks to this size seemed out of the realm of possibility. So I scrounged through samples from my Introducing Cold Wax Painting workshop, playing with the mat looking for interesting “found” compositions. It would be awesome, now, to try to recreate this “large”, say 36 x 36 inches. And how big would that piece of graphite need to be?