I think picture #5 is a winner (gold inner border, solid(ish) brown outer border)! I would also suggest using the gold fabric as binding (if you have enough, otherwise the similiar one with the flowers might work as well). I think the one you put on top as suggestion would be too busy, as the centre is quite busy itself, with the many, many pretty scrap fabrics you used. It'd be good to balance that out with relatively calm borders and binding, so that the focus stays on the centre.