Postcard No. 2 completed. I love this pattern, 'Nzeppel, and I draw this pattern often. The background is just a filler of black and sepia colored lines to add some interest. The pattern was created by Rick Roberts and Maria Thomas.
Postcard No. 3 completed. The pattern is called "Unspoken", it was inspired by the spokes in a bike wheel. The pattern was created by Maria Thomas. There is a version of unspoken in the book Rick and Maria published, "The Book of Zentangle".