buy more red fabric....they do not have to be the same fabric, just go take your stack to the store and find other reds that blend and mix them all up, they will look great together... a famous male quilter, Michael Miller, wrote somewhere (and it really hit home with me) that when a stack of fabric looked 'flat' or 'needed something' or 'didn't go together'...add more, don't subtract... expand the assortment...