I am not sure if it fulfils the terms of entry and it wasn't specifically taken for this contest but it is a great wallpaper and you are welcome to use it. I think at the moment I have it licensed on my website under a Attribution-ShareAlike 4.0 International (CC BY-SA 4.0) if that is OK?

Hi! Thanks for your submission. The license is fine with the rules, but the content is not "original and created specifically for the contest", so I'm afraid this submission cannot be accepted. Furthermore, the image is in JPG, while rule 5 states that all images should be in "PNG format". If you manage to create a new image that follows these criteria, it will be welcomed as a new submission

Oh bugger, I thought it was the png copy, oops. Oh well, than you very much anyway and good luck with the contest!

Yes .pngs would be needed, and a tad higher quality of the pic.