Number one drabs it down and number two brightens it up. Just depends on which way you are leaning. I'd choose number one. Your blocks are wonderful. I would use 2 inch sashing between the blocks, and make a stop border of the same fabric around the edges. Then do a checkerboard border of scrappy squares or 2 x 4 inch piano keys. You are definately on the right track. Your neautrals really pull the scraps together for a cohesive feel. BRAVO for you stepping out of your box and trying something new.