Interesting the different ways our brains work. I see only one block repeated multiple times. That block is a modified 9-patch. It is the big rectangle surrounded by strips like you'd sew a log cabin and with different colored squares in the corners. At any rate, I would use 6" x 8" (finished size) big rectangles with 1 1/2" (finished size) strips and then 1 1/2" squares in the corners. I'd make 4 of these from junk/scrap fabric and sew them together to see if I had the proportions correct and then work from there..... Hope this helps!