[QUOTE=Dina;7535521]I would just leave it alone. I like your quilt! It looks good. Look at your quilt, without looking just at the corners. See. It looks okay.
I agree. First thing I looked at was the overall colors and pattern. Then when you mentioned the third border, I admired how you matched and centered the design within the border and matched it going horizontally and vertically. I wouldn't have even noticed the corners if you hadn't mentioned it. I would leave it alone but follow the recommendations you got here for mitering the next time. Nice quilt!