Ben Rubin is a talented illustrator from New York City, who takes pictures with his iPad and then applies his imagination in his ongoing art series called “Subway Doodle”. “One day I took a picture with my iPad on the train and drew over the picture,” he says. “It was fun so I did another. And another. Then it just kind of continued from there.”

If you’re riding the subway between Brooklyn and Manhattan, there’s a chance you could become the subject of some very entertaining artwork. Over the past two years, Rubin has posted more than 360 drawings to his instagram page. His monsters snuggle up to sleeping travellers, amuse youngsters, and wreak light-humoured havoc throughout the New York underground.