I happen to love optical illusions. I think that’s one of the reasons that I love exploring Zentangle reticulum. By using some careful shading, this tile may look like a series of “Ys” or it may look like “blossoms”. Prior to shading, it looks a bit like the tangle Fassett! It’s a lot of fun to play with. The fragment used here is B13 from the Zentangle Primer.
Zentangle drawn on fawn, Stonehenge using brown and sepia, Micron pens. Shading done with graphite and colored pencils.