This "Lucky star" wallpaper features what's possibly a parody of the famous bunnygirl image from "The Melancholy of Haruhi Suzumiya".

For effects, I used paint program tool line tool to separate the wallpaper in three areas and then color the spaces with the fill-with-color tool, randomly selecting three colors to use. While placing the "Lucky star" image I chose to use on the left side, I created a puzzle effect on the right side where I inserted the anime's logo on the line between two colored areas and drew black edges around the logo with the line tool.