Greetings. Robins:
Hope you are surviving the heat and the smoky Vancouver air. Indoor activities like sewing are recommended!
For August we are going to KISS (keep it simple, silly) a couple more sides with square in a square blocks. There is some interpretations of this traditional block and I leave you to go forward with what you see fit. Two sides, please. 🙂

Some ideas:
https://www.craftsy.com/quilting/article/how-to-make-a-square-in-a-square-quilt-block/
http://thecraftyquilter.com/2012/07/perfect-square-in-a-square-technique/
https://www.diaryofaquilter.com/2013/10/virtual-quilting-bee-square-in-square.html
Niki