The original Millennium Falcon design was intended to simulate an alert lizard with its legs extended. However, while Colin was creating his design, another production company emerged with a spaceship showing a very similar lizard concept (Space 1999). Therefore, Colin's original design was re-worked by later artists. However, some of Colin's ideas, such as the WWII style cockpit with gun turrets remained in the final design.
In later Star Wars movies, a version of original Millennium Falcon emerged as a transport ship.