I put down the backing with the batting on top and then laid out the first strip. It looks like this... aren't the fabrics nice? The orange one isn't quite what I expected but I think it still works
The strip is a little less than 20 inches wide and about 90 inches long. One long edge of each rectangle is finished. Not all rectangles are the same width. I laid them out sort of like shingles with the long finished edge on top. The short edges will be covered by red strips.
Next I plan to quilt straight lines paralel to the long strip. I have not decided how I will keep the pieces in place while I do this. I might baste them or pin them or even use blue tape.
Pippin loves to help.