I managed to get it done!
Trace or print the block diagram onto your foundation paper, number, and cut out as in the photo.
Foundation piece all the sections. Trim seam allowances to 1/4".
As you may have noticed, I had the pieces positioned incorrectly in the above photo. Make sure that you sew them together the right way.
Attach the small square sections to the small rectangular sections. Then sew the resulting sections to the center section.