I was slow so I timed out before I could add instructions for about...
For a finished 2 x 4 unit. The sky fabric is a 7 inch square and the sky fabric is a 5-1/2 square. For a 4 x 8 finished unit the sky would be an 11 inch square and the sky fabric a 9-1/2 in square. I think photo are a little out of order at the end. After the first put right sides together opposite fabrics facing each other and edges matching. The scissors show the clip area half way between the first cut units so they will press flat. And the next scissors show the 45% angles. Hope this helps. Be sure to allow for the 1/4 in on first cut for the goose point on the top.
Judy in Phx, AZ