Click on image for larger size~
I honestly can’t remember where I found this. The wallpaper apps I use on Android are PicSpeed HD Wallpapers and Wallpapers Bay for Tablet. Both are decent but PicSpeed gets bonus points for having a search function and giving users the ability to make use of full size images instead of cropped versions. You even get a context menu option installed which will let you do the same with images already in your device’s gallery.