“JANE DAHMEN: Through the Trees,” an exhibit of large-scale acrylics on panel by the Newcastle artist, runs through Sept. 28 at Gleason Fine Art, 545 Congress St., Portland. Pictured is “River Trees Mosaic,” an acrylic on panels. An opening reception with the artist will be Friday, Sept. 6, from 5-8 p.m. Gallery hours are Wednesday to Friday, 11 a.m.-6 p.m., and Saturday, 11 a.m.-5 p.m. For more information, call 699-5599 or visit gleasonfineart.com.