We have created a Flick group for your submissions: https://www.flickr.com/groups/ubuntu-gnome-16-10

From all submissions, 10 wallpapers will be selected to be included in the 16.10 (Yakkety Yak) release of Ubuntu GNOME.

Rules of the Contest:

It is important to note Ubuntu – and hence Ubuntu GNOME – is shipped to users from every part of the globe. Your images should be considerate of this diversity and refrain from the following:

• No brand names or trademarks of any kind.
• No branding assets like “Ubuntu GNOME” or text in order to permit use by derivative distributions.
• No version numbers as some may prefer to continue to use your theme with an older version of Ubuntu.
• No illustrations some may consider inappropriate, offensive, hateful, tortuous, defamatory, slanderous or libelous.
• No sexually explicit or provocative images.
• No images of weapons or violence.
• No alcohol, tobacco, or drug use imagery.
• No designs which promotes bigotry, racism, hatred or harm against groups or individuals; or promotes discrimination based on race, gender, religion, nationality, disability, sexual orientation or age.
• No religious, political, or nationalist imagery.

Constraints:

• Each user can submit up to 2 wallpapers. The final dimension should be at least 2560×1440 px (and 16:9 proportion if possible). Any smaller size will not be considered.
• Use PNG format for bitmap files, use JPG format for photos.
• Submissions must adhere to the Creative Commons ShareAlike 4.0 (see www.flickr.com/creativecommons/). If not specified, it’ll be assumed that the work is released under CC-BY-SA 4.0.
• Attribution must be declared if the submission is based on another design.