the fabrics are beautiful but seem to be all medium values-
try printing in grayscale- to see the contrast across the fabrics- it makes it easier to get them in the correct order- and you can see where it all just blends together- without contrast.
it is hard sometimes to get a good (flow) from light to dark- seems most of us tend to have alot of medium.
maybe you could just add a couple more fabrics- and do some rearranging--the grayscale picture really helps get them in the right order.