I followed THIS "Flux Mono-Tangle Butterfly" video tutorial by Lovelygiraffe (Asuka Odagami CZT). I decided not to add the butterfly to my tile because I really liked the design without it. I was a little confused while watching the video. At the beginning, she draws her tile very quickly and skips some of the steps. I eventually figured out that the tutorial actually begins at 1:57 on the progress bar.
You can see examples of Asuka's butterfly tiles HERE on Instagram.