Each of the fabrics are goregous and each could stand alone as a focus fabric. That and together they all appear to be the same value. The result makes it looks busy and there is no place for the eye to rest.
I would pick my favorite and then go with some tone on tone fabrics to round out the block. Look for something to contrast as well.
(BTW, colors aside it is a fantastic block---don't get discouraged and I do hope you will post again when you find a combination that is pleasing to you. :D )