Here is a collection of Windows Phone wallpapers that I have either created or collected. I have tried to give proper credit where it is due & only claim authorship where it is indicated.
The Windows Phone Wallpapers collected here are divided into two size sections. Please make sure you get the proper size for your device to avoid pixelisation or cropping.
480×800 Windows Phone Wallpapers
720×1280 Windows Phone Wallpapers