The settings we used to take the pictures were ISO 100, F stop 5.6, and 15 second long shutter speed (maximum). The steps we took were to have someone supervise the creation of the photos while the other two would draw the scene with their lights. This worked sometimes, but there was a fourth group member that was not very helpful during the process, ruining the pictures and kicking everyone else to mess up the pictures. Also, the shutter only stayed open for 15 seconds, so our pictures were rushed. My idea for taking this to the next level would be to draw picture for minutes at a time, adding a ton of detail.
See the rest of the photos here