I wasn’t able to remember to that competition, because it’s about 3 month ago. Good luck, I have a wonderful email archive. so I was able not only to find the competitions subject, but also my contribution.
The subject was: extreme landscape
My contibutions title: oppressed landscape
This photo was taken in Grevenbroich, Germany by using my fish eye lens. It shows the enormous whole remaining after digging for brown coal in daylight mining.