The default desktop wallpaper for Ubuntu 15.10 Wily Werewolf, next Ubuntu release coming in October, has been released on launchpad by Will Cooke.
The wallpaper is made from Alex Milazzo in the Design team. It looks not all that different from the previous 15.04′s wallpaper.
Below is the Ubuntu 15.04 default wallpaper:
The wallpaper image, png8 and png24 in 4096 x 2304 available for download at the link below: