I've been working on a 9-tile ensemble for a swap that I am participating in with 8 other CZTs (Certified Zentangle Teachers) at an upcoming gathering next week. We are all using the "curvy" pre-strung set created by Zentangle.com and will swap one of our tiles with each of the other participants, keeping our own center tile. Here is my finished set.
Stay tuned. I'll post the after-swap version in a few weeks.