Nice try. Your crop is a little too tight, focus is soft on the wings, and your butterfly has had the butter beaten out of it. Great job of desaturation but the photo's subject has very little eye appeal to be a great picture.
The butterfly is gorgeous against the desaturated leaves. I think green leaves would both clash with the overall butterfly and blended into the green edges. I'd love to know how you selected the delicate feelers to keep them colored while the background was desaturated.