Exhibition themes don’t have to be complicated. “Don’t Turn Around Don’t Look Down” is a group show of current work by studio-mates. Painter/photographer John Brooks owns Quappi Projects, a gallery in a Portland warehouse. The building also houses the studios of Denise Furnish, Dominic Guarnaschelli, Jacob Heustis, Letitia Quesenberry, Chris Radtke and Rosalie Rosenthal. The show is the gallery’s first group exhibition. Its closing reception is Friday, June 29 from 5-8 p.m.; the artists will be hosting open studios at the same time.