I just did it as an example, it's not something I'm making since I will be doing the BOM.
Adding up all the yardage it could be done with 20 fat quarters, at the most, and less if you get a 1 1/2 yds for background, plus the sashing and borders.
I have a 40 FQ set of Luna Notte that I am thinking of using but haven't decided yet.