It's the top border isn't it? The direction of the HST's on the right half? I would NOT rip it out. The border is busy enough that if you weren't specifically concentrating on the "mistake", then it is not noticable. Be proud of your creative license to change things up. I always seem to make one goof in my quilts. Now it is a "signature" of my to accidently goof up one SMALL piece. It becomes a Where's Waldo to find the "mistake". I say leave it & go on to your next masterpiece.