Maryland Center for the Arts’ Harford Plein Air Festival presents the work of 30 juried painters from across the U.S. with outdoor scenes of Harford County. Sept. 15’s opening reception and awards ceremony is part of the Arts Across Harford celebration with food and music by members of the Susquehanna Symphony. The gallery is open for exhibition and sales on Sept. 16-17 from 10am to 3pm, in conjunction with the Bel Air Festival for the Arts.