First step is to trace out your pattern onto freezer paper. I needed 8 of each pattern piece. I traced once, stapled 8 sheets of freezer paper together and cut along the lines and then lettered each piece.
Next iron the freezer paper to the right side of your chosen fabrics as shown in the first photo. I cut accurate 1/4 inch seam allowances, though this is not required.
Next I started to sew the pieces together. The second photo shows the A and B section sewn together.
The third photo shows the ABC unit and the CrD unit.
Fourth photo shows the first of the 8 sub units, and then 2 of those units sewn together.
The fifth photo shows all 8 sub units sewn together. I have removed a few of the pattern pieces. It was easier to remove them if I pressed them lightly with the iron first.