Ripple Scrap Lapghan

This is done, too, but I'm procrastinating working in the ends. :-) This is all single crochet worked in the back loops only. There are 10 sc between the peaks and valleys. I used black every 12 rows (there are two rows of each color). The black really makes the other colors "pop." If (or when) I do another one, I think I will do fewer sc between the peaks and valleys.