When he began showing his subway portraits to their subjects with a sheepish “I drew you,” his popularity skyrocketed.

Dinara Tejada told Newsweek she didn't know whether to "laugh or cry" when she saw what her son had done to the piece.

“I can’t promise you won’t get paint on you.” So says Heidi Hanh as she ushers me into her studio, warm and welcoming. Large ...