The election of Fedora Supplemental Wallpapers for Fedora 28 has been open a few days, and I have contributed the following two images:
As usual, I don't doubt that others have submitted more stunning images, but I also think these are good background images, as I find them nice enough to look at while beeing plain enough to stay in the background (and yes, the images submitted are in much higher resolution than shown on this site).
The voting is open to Fedora contributors only. If you are a contributor, please consider voting, either on my contributions or on something else (or both, each voter can vote for 16 images). Voting is open until 2018-02-26.