I've got a HUGE library of great-looking photos that I've been turning into iPhone wallpaper images. Since I'm doing it for me, I figured I'd post them for YOU in case you wanted to use them, too.
The top one is for iPhone 4S and the bottom is for iPhone 5 and up. You should be able to save it to your phone's camera roll, and from there, set it as wallpaper.
This edition features the New York New York Casino in Las Vegas. Note the Southwest Airlines 737 departing the busy Las Vegas airport.