What do you have in mind for the style and theme of the app?
The pieces are meant to look like materials you would use if you were an architect (wood, steel, rock, pipes, etc) as can be seen in the game. The background is meant to look like the outside and will climb and climb in to space and beyond. This is where the most creativity is required. The background should have interesting effects as you get higher and higher.
I've uploaded all of the existing images. The pieces used in the game must be the exact dimensions as they currently are. Background objects can be more flexible.
There is just one screen, which can be seen at the website above. The winning designer will also be asked to create a modal screen for saving your game or restarting the game as well as a splash screen for when the game starts up and an icon for iphone/ipad menu,