I've been meaning to post here for a few days, but as always time seems to be slipping away. So, instead of the comprehensive responses to the congratulations, I'll do a blanket thank you. All of the messages are appreciated, but a few I found really touching, and that made it all the more special. Thank you.
The idea for my story was fairly simple. On a quick glance, on a small screen the picture looked a bit like a small animal on a twig. Obviously I realised it was nothing of the sort, but it left the impression of something crumbling away.
From there I worked backwards!