I really think the quilt is very cute, and wouldn't change anything. But....if you wanted to fix it....you could take off the binding on the corners and rip out the quilting enough to free up the corners....take enough off of the border to add a cornerstone in a contrasting fabric (not one of the two colors currently in border).....then it won't matter where the border pattern ends up....stitch it all back together, quilt again, and put binding back in place. You will have a quilt that has that "finished" look. It would be a lot of work, but nothing complicated.