These are two scripts written in C for dynamic and live wallpapers. They only work on Windows!
To set a dynamic wallpaper -> $ dynamic wallpaper_name, this will change by the hour (position of the sun)
To set a live wallpaper -> $ live wallpaper_name, live wallpaper (like on mobile)
There are two sets of wallpapaers: earth (the default one) and city
Sources for photos: Dynamic Wallpaper Club and Dynwalls