When you right click on the image, (the size matching your desktop) there should be an option to "Set as Background." That option automatically saves the image in a Windows folder.
See my Help page, there are instructions for Mac users there as well.

Chrome Browsers require an add-on for the right click option, see the Help page for a link.

On that same menu you can also save the image to disk. There are programs, wallpaper changers, available around the internet that rotate your wallpapers on a schedule you set. Check the "Wallpaper tools" on my Links page

I have a list of the main software here. 

Some other free PC 3D software (for non-commercial use) can be found at:
Terragen classic   3D Terrain editor/renderer
Daz Studio A 3D figure posing tool for use in positioning "Poser" format models bought from DAZ3D.  

My compensation for the images comes from the banner ads at the top of each image, so I don't allow the images as downloads on other sites as wallpaper. You can however link to the wallpaper page, the return link will even return to your web page. (that way I still get paid for my work.)

If you want to use an image as a graphic on your site, please see the FAQ here.

GT Ripple animates whatever wallpaper you already have on the Desktop. You just run the program, and then minimize the settings window, not closing it. If you hit close it shuts the animation back off. Minimize is the little button with the underline symbol in the upper right corner of the window. It hides the window in the task bar (system tray).

If you need help, see the author's website for help.

There are 1600x1200 size wallpapers for all images created since the last quarter of 2002. and 1920x1200 wide since early 2011. I will try and add larger sizes to some of the older popular images.
If you really want one larger, leave me a request on Twitter or Facebook, and I will see if the original is large enough to add them. For the images without larger sizes, you can set the display preferences to "stretch."

Any public use of images require a license fee that is variable with the size of the project.  The images are free for personal use, but they are not "Free."

The following are single use license fees, they must be paid for each use.

For images size1024x768 or lower the license fee is $10 each per 10,000 in the printing/distribution. 1600x1200 is $24 per 10,000, and high resolution (generally between 3200x2400 and 4000x3000) is $39 each per 10,000 printed/distributed.  Hi-res is not possible for all images, e-mail for availability.

Rates become more flexible with high quantities, E-mail for quotes.

Downloads of the images outside of Visual Paradox are not allowed, so unless your offer is special, don't ask.