I'm not sure "stole" is quite the right word, many illustrators usually have reference materials that they... um... take inspiration from! Sometimes it is blatant copying, others its a "homage" (a recent update of Dan Dare in graphic novel form featured Treen starfighters based on a Luftwaffe prototype from World War II; the artist freely admitted to taking the basic design). I'd be interested to know who the illustrator was, too!
"The power of bakers, the power of artists; even the power of witches! It must be a power given by God... sometimes we suffer for it."- Ursula, Kikis Delivery Service.