I agree with Jammin Jane about the border, although my preference would be 2 borders, brown then pink. It's your quilt, and your decision, of course.
SITD, if you are using a walking foot is, in my experience, faster than making knots. Some people prefer one, some the other. If you don't tie your knots really well, little fingers untie them. My DH's parrot untied his quilt.
You have done a really nice job of this. Be aware that a "perfect" quilt does not exist, however.