To make these images your desktop theme, simply click on the thumbnail. Once you reach the big picture, right click it and then click on the 'Set as background' that comes from the list. Enjoy!
Do not even think of copying these images and using them for yourself on your own website. If you do you will suffer the consequences when I find out.
I do wish to say that all images make look different on each size of screen. So you can have fun playing around with options such as 'center' or 'stretch' or 'tile'.
