This is a technique created by Dagmar Pezzuto for the Advanced Classes Georgia Seitz. This is a link to another video on how to do cluny leaves created by another member of the online advanced tatting class created by Edwidge Renaudin using a handmade box loom. https://www.youtube.com/watch?v=WeGG1Lx9OkI
Dagmar and Edwidge are some of the best designers I have personally known using the cluny technique. Happy Tatting