What a peach of a wallpaper don't you think? I suppose you what to know how to get it on the desktop now. There are a number of ways to set the chosen wallpaper as your desktop wallpaper / background. You can either right click background wallpaper below and then click 'save target as...' (IE & Opera) or 'save link as...' (Firefox). Please remember where you save it to!Then set the desktop background using your computers OS's desktop or display control panel and select the image you just saved.
Another way is when the full screen wallpaper is shown, right click it and select 'save image as...' or 'set as Desktop Background' or 'Set as Background'. It'll come to you when the time is right. I trust you. My guess is you already know. I'll keep it shut now.
Return to wallpaper thumbnails.