@Simon Le If you have multiple backgrounds of the same type, please upload them as a pack rather than individually. It's a lot easier to moderate, plus it saves you some time as well. 

https://sortitoutsi.net/graphics/submissions/create-collection/17

Make sure you name the images as the UID of the club/stadium/person that you're doing, that way the system will recognise it automatically and you don't have to type in the names yourself 👍