Art venues in Gloucester and Mathews are offering painting classes in January. Among them are the following. Hanah Hailey will instruct an Acrylic Pour class from 1-2:30 p.m. on Saturday, Jan. 15, at Arts on Main in Gloucester. Students will create one-of-a-kind paintings using colors of their choice. All materials and supplies will be provided. Participants should wear paint-friendly clothing. The cost is $40. Call 804-824-9464 to register. Jennifer Schroeder will teach a class on Butterfly and Flower Watercolor from 6:30-8:30 p.m. on Tuesday, Jan. 18, at the Bay School Community Arts Center in Mathews. Students will create a watercolor painting of a butterfly and flowers that they can frame, as well as a watercolor paper notecard to paint a smaller version that can be a gift. All materials are provided. The cost is $38. Call 804-725-1278 to register....