If this were mine, I personally would use two borders, the first being the size of the strips in your stars . Make that border a cream/ off white to balance that part out. The second border would be a red or a green to balance those colors out and draw your eye outward. If you had enough of it, take the red striped fabric and make the border from it if you chose red, and the green from the block next to that if you chose the green. Looks like its going to be a very comfy quilt.