The Google Now inspired wallpapers are not official. The designer, Alex Pasquarella has done a superb job of putting them together that look and feel like Google Now images. Few images are based on existing Google designs (Rocky Mountains and Tahoe), and some being original (Canyon and Rochester). There are 4 total designs and each design includes three different times of day (dawn/morning, dusk/evening, day, night). Each design has a resolution of 1920×1080 pixels, which means each images are crisp and clear. You can download these wallpapers from Alex Pasquarella website. All credit goes to the designer.
