Complete instructions for downloading and saving tubes to your computer are here
This page was made with the various clouds. I found that these clouds look best when place randomly", one on top of another; sized differently, etc.
To download, click on the picture of the cloud you want, , if you want them all, download "All".
All of these clouds have been sized from 45% to 70% for purposes of getting them all in one pictures. The clouds that are used in the wallpaper are mostly 100%
Expecting a tornado? Another gloomy day?
Clouds at night? Another cloud background
Now, if you prefer, you can make your own clouds. Tutorial is here.