How to Use Ubuntu:

Get your Ubuntu direct links High Quality

If you want to download the picture, Please "View Original Size" button, and you can go to image link.

If you want this pictures to be the background of your computer, right-click on mouse and select "Set As Desktop Background"

If you want to keep it in your computer, right-click on mouse and select "Save Image As".

Or you could see other high quality picture are still related to Ubuntu at the bottom.