Thank you for this class Cat. This allowed me to learn about S6 and RB. I uploaded some work on there although, in my opinion, the platform is a bit confusing to maneuver around and time-consuming. Ultimately, I think it is a great way to get an idea of how your work would appear on different products and get some exposure if you are selected by their team to be featured.
Here are my links (I use another integrated POD company for my Etsy called Printful)