I am from a small high school and we recently had two GOBO's made for the wizard of oz. We got a full color high-definition gobo made of the emerald city. We have an etc source 4 jr. light (beam width 50degrees, gobo size M). We have it placed in a way so that the gobo fills the entire stage but we are having problems making it a clear image. Our stage is approxamitely 35 feet wide by 14 feet high. Are there any suggestions? Also, we will be selling these when the show is over if anybody is interested.