I wouldn't use the wolves at all in the border. I think they are outstanding chasing each other in the main body of the quilt, and it's enough. Adding them to the border isn't really needed, and maybe takes away from the interest of them in the center. If you have a similar color fabric to the the golden orange color of your print, you could audition that and see if you like it. I'd probably put the cream, then a light orange, or gold, or warm brown, or maybe black, and then the brown, making it a 3 stripe border, which would echo the feeling of the stripes in the center.