Thanks, this was a quick and useful class!

On another note, I liked that you had a link to all your photoshop classes on your web page.  Could you send out a link to your Illustrator classes the same way?  Thank you!

This got me thinking about Escher, so I tried the following variation.  I know the execution isn't quite perfect, and I would need to do things with circles and shape builder to get all the curves to be the same.'