In making this wallpaper in paint program, I used line tool to make a cross at the centerpoint, which then separated the background in 4 areas. Then I colored the areas (using fill-with-color tool) with the colors meant to match up with the swimsuits of the girls seen in the animescan I selected to use for this wallpaper. Last part was of course to place my chosen animescan at the center of the wallpaper.

Enjoy!