All of them started with the same 8 strips
which are then advanced by adding a lighter colour at the bottom, losing the darkest at the top
until ending up with these 8 strips.
All of these are then again cut up into strips of different widths at set angles giving these beautiful diagonal stripes.
I started stitching these strips together only to find out that that is not as easy as it might look! But nothing worth while happens overnight, so I'll just keep on stitching, unpicking, stitching and unpicking again until all 64 (!) strips are done.