Ca-Ray-Zee!
Ok, this is old, and I don‘t remember what I was trying here, other than to try tangling on a colored background with a different colored pen. This tile has no shading, and frankly, I don‘t think adding it would help at all. It looks like the string had lots of curves, but who knows how it all began!
Zentangle drawn on colored card stock using a sepia Micron pen.