I joined the Facebook Group - Square One - Purely Zentangle. They are dedicated to returning to basics to enjoy the Zentangle(copyright) experience. My first effort was replaced by one that fit the parameters of their group. Original tile size of 3.5" x 3.5", penciled corner dots and a string. No color, black Micron only. It was very liberating to work in that size. No worries about what color to fill in, just the pleasure of tangling. I enjoyed it very much and will continue to submit my "tiles".