Where does the wallpaper in the Windows 7 theme pack come from?

Microsoft's official website in the world is offering a variety of Windows7 theme packages, where are the high-resolution wallpapers from the package?
Of course, Microsoft must have copyright or purchase authorization. And, very simple method, we can easily find this answer.
At the end of last month, Jennifer Shepherd, the person in charge of the Windows Personalization Webpage, introduced some of the ideas about the Windows 7 theme (see: "Microsoft tells the secrets of Win7 personalized theme"). Today, Microsoft offers a new theme "The Harvest Season", and Shepherd also introduced the story behind this theme.
“ November has quietly approached, I have completed a new theme to beautify your fall —— harvest season. For American friends, this theme is also for Thanksgiving, but I designed it to celebrate the harvest around the world. ” Shepherd said.
Shepherd pointed out that the “season of harvest” collected pictures from around the world depicting different crops including olives, grapes, rice, wheat, corn, peaches and more.

Oh, let's introduce the "season of harvest", let us move on to the next topic. Microsoft has provided more than 100 themes for Windows 7, and the wallpapers are beautiful. Do you still stare at a wallpaper and think, where is this? Who shot it? Have these problems been in you? Hovering in my mind?
How do we know where the wallpaper in the theme comes from? Shepherd explained that this is simple. Right click on the desktop, open the "Personalization" control panel, select the theme you want to know, and click “desktop background”.


when you hover over the thumbnail wallpaper, a pop-up message window will be described in more information about this picture, including the title, author, size, resolution, and so on.

To view this information more clearly, just click on the wallpaper you want to view, right click and select "Properties", click “Details” (mouse can be seen anywhere in the mouse) Full content).

In fact, it is very simple, just look at the properties of the picture.