Are you planning on using other fabrics with your layer cake? I don't know what I would do. It looks like a hard collection to figure out a pattern. I had a bunch of larger print fat quarters I had bought 12 of. I ended up make a tumbler quilt out of them using a repeating pattern of warm colors and cool colors, It ended up having sort of a modern quilt vib. Maybe doing a tumbler quilt using tone on tone blocks or solids mixed in?