Ubuntu 13.04 Default wallpapers has released today. See here the wallpapers or Download the High Quality Ubuntu 13.04 Default wallpapers. These wallpapers yet not included in Ubuntu 13.04 by default, but we can’t wait to see them. Ubuntu holds a Wallpaper contest for every six months and give the winning pictures as default Wallpapers with up coming Ubuntu release. 300 wallpapers were submitted previously. Among them theses 13 are selected for the upcoming release of Ubuntu 13.04. These are beautiful nature pictures and a cool ringtail wallpaper is also rocks !
These compressed file has been uploaded to a bug marked against the wallpapers package on Launchpad and this is where Seb, Didrocks and others will ensure that the images make it into the release before UI freeze.
Download Links: Ubuntu 13.04 Winning Wallpapers
If the link stops working, you can download via bug report.
See here in Flicker.