Warm summer -- Sheppard Art Gallery, 8173 Main St. in historic Ellicott City, is showing paintings of airy, light-filled landscapes and seascapes by Barbara Gruber and Robert Knudsen through Aug. 1. Knudsen creates a tranquil atmosphere; Gruber, a sense of light, color, air and touch. One of the paintings in the exhibit is Centerport Beach (above). A reception will be held from 6 p.m. to 9 p.m. Friday. Gallery hours are 11 a.m. to 6 p.m. Tuesday through Friday; 11 a.m. to 5 p.m. Saturday and Sunday. 410-461-1616, or www.sheppardartgallery.com.