Considering this was made by Disney (I know WTF?!?) this was actually an awesome game!!
All I do to make these is search Google images for "gamename wallpaper" throw a few into Photoshop and and erase where necessary to make a quick collage.
As they are not in any way "art" I don't spend more than a few mins making them, but that's why I can make one for every game I play