Lan Bao, on the ladder, and his son, Jaden, paint a mural Monday afternoon on the side of the Rainbow Bicycle building on Lisbon Street in Lewiston. “The owner commissioned us to create something abstract with a Maine theme, and this is what I came up with,” said Lan, an artist from South Portland. If the weather cooperates, they will be finished before the end of the week, he said. Russ Dillingham/Sun Journal