We know there is less support from developers but there are some pretty good 3rd party apps available in the Windows store.
Today we found an interesting app called SpotBright. The app automatically finds beautiful Windows Spotlight images and allows us to download those images and save it permanently.
In the app there are two options to search images, fast search or in-depth search. As the name suggests, fast search allows the app to find images quickly but for limited quantity and in-depth search takes a bit long to find images. In our case, total size of 174 spotlight images was 109 MB and the images are very HD and beautiful.