school game for special kids - game maker 1.4

Hello, I'm assisting a school for special kids with multiple disfunctions. The school has an acting class. The students will create the background for the show using the game request I'm posting here. The game will enable the students to create the background of the play. it will be displayed on a screen behind the actors. The games purpose is to create that background. Meaning, the students will create the background of the show with this game, prior to the show itself. It will be one of there assignment before launching a new show. Please watch video to get a grasp of the idea (link in attached PDF)