Elegant back curl

This is another photostack of the back of an amaryllis petal which I thought looked very graceful. I can see parts that aren't totally sharp but my later efforts were no better! It has kept me occupied for some time though :-)
One day, when the weather improves I may be able to get some different kind of shots but today is far too wet and flooded to go out at all. It is the first day we haven't gone for a walk for ages.