Adorable Flower Square Bedspread, Modern take on the Granny Square with a Crochet Diagram for the Squares included.
Patron de Mandala♥ https:// Patron mandala
UPDATE I have a new version, Mitered Granny Square which includes a diagram that you may want to check out. To help understand how to do the Mitered Granny Square, here is a diagram.
Cute idea though.