[SEE ART] Photographer Andrés Wertheim uses consecutive in-camera exposures to merge images of museum visitors with the artworks they have come to see. The resulting photographs range from hilarious—like the image of a bored visitor sitting in the hallway inches away, it appears, from two peasants fighting to the death—to tender, as when Wertheim juxtaposes a teenage boy lying on a museum bench unknowingly mid-cuddle with a cherub who is sleeping in his lap. Sometimes it is hard to determine which parts of the final composition belong to which exposure, blending art and life in a way that makes us question if there is any separation between the two. Blue Sky Gallery, 122 NW 8th Ave., 503-225-0210. Through May 29.