MONROE - The Monroe Theatre Guild (MTG) features art classes for adults and art and theatre opportunities for kids as part of its summer class lineup.For adults, the popular acrylic "masterpiece" classes taught by Suzanne Miller offer two opportunities to create a painting in a day. In "Masterpiece in an Evening" - to be held from 6 to 9 p.m. Monday July 11 - artists will create a beautiful pop-out painting of a summer meadow with flowers, fences, birdhouses and butterflies. The cost is $20 for MTG members and $23 for non-MTG members.