Okay, I think that an accent border with the rust 1" to 1.5" finished wide would work best (depending on the size of your blocks) then a wider border with the Peach circles on a green background being at least the width of 4.5 to 6 inches. Depends on how it looks if it is proportion to the quilt blocks (and also how much fabric you have !!). The blue doesn't match the blue in the quilt. Also remember the binding. If you want it to show, try the rust. If you want it to blend, then use the print you use for your border. GOOD LUCK. You have me motivated to ask about the borders on the quilt I am currently working on. THANKS
Joellyn