Thanks Rowan for the bump.
Giving this another bump as there are now just a few hours left for participating.
The thread will be closed at midnight today, CET time. This also means that if you post/entry was invalid, missing a screenshot or a link to a screenshot of your city, you have just a little bit of time left to fix that.
Winners will be announced in a few days after the thread closes, at which point the rewards will be given out as well.