With its high-keyed chromaticism and semi-abstract imagery, Liz Tran’s “Elation Station” is a Fellini-esque carnivàle. A riot of bubblegum hues, pearlescent paints, glitter, and circus-tent iconography, the Seattle-based artist’s suite of new paintings closes out a highly successful series, “The Office,” in the eponymous office of the gallery’s late owner, Laura Russo.