OH I think a dark brown would be beautiful with those blocks! how pretty that is turning out..
are you finding as I have that as you work with fabrics you might not like in the end they turn out pretty darned good? and are not nearly as bad as you thought? some you love right up. some you think ugh what will I do then you see them coming together and say wow.. next time.. ...I have learned so much with these swaps I am addicted!