MOST of these wallpapers feature Android and/or CyanogenMod, but there are many random wallpapers. A few of these are NSFW, scantily dressed woman for example, but nothing pornographic!! Pick and choose what you want to keep or use them all.
I use the app Wallr to automatically change the wallpaper every 5 mins, additionally I have set Wallr as my "swipe up" action in ADW so I can instantly change the wallpaper with one swipe at any time.
Please click the while you are downloading..