Material Walls contains High Quality Handcrafted Wallpapers dressed in the famous Material Design / Quantum paper design introduced recently and which debuted in Android Lollipop (Android 5.0) by Google. All the wallpapers are available in the perfect resolution for almost every device out there as almost all resolutions are supported. Added new wallpapers from other Manufacturers.
Here is a link to v3 of the app released as a separate app : https://play.google.com/store/apps/details?id=com.harsh.material3

Featured on Android Authority : http://www.androidauthority.com/lollipop-wallpapers-541444/

Please note : This app isn't optimised for tablets.
Enjoy.

Few wallpapers have been taken from here https://www.behance.net/gallery/18526001/Material-Wallpaper
Credits to Lunae Luman :)