I don't care for the border at all. A darker shade of green would have worked better, as would a thinner green line, and eliminate the outer yellow edge. However, I like the photograph itself a lot and like the way you processed it, especially the contrast.
Something about the high saturation works for me. I think if I were to change anything, I'd either reduce the width of the green frame, or maybe eliminate it altogether --- maybe use a thin black one?? Love the colors though. Good one. 7