dragon mural

A client asked me to paint a wall mural for an event. The painting is about 6-8'x10'. The event was a medieval themed play. There wasn't any real specifics to the subject matter. I was told I could do whatever I wanted so long as it is appropriate for children. I thought doing a whimsical dragon with a knight trying to befriend him would be a great subject matter since it teaches kids that violence isn't always the answer and kids like cool monsters.