Check out Shelley Swanland's work. She's done some beautiful things with CW.
https://shelleyswanland.com/category/cathedral-windows/
http://www.sswanland.com/cathedral-window-quilts/
http://www.sswanland.com/
She's also written a book that shows a ton of different layouts and ideas, "Machine-Stitched Cathedral Stars".
hth.
Oh. I re-read your post and now I understand that you're not looking for ideas, you're looking for how-tos on making your own design. Well, maybe someone else will be inspired by Shelley's work. 😁