Ölfarbe
Arens has exhibited in many shows, notably: "Happy War… It’s the bomb," the first official show at La-La Land, which featured the work of Arens and many local pop-artists, including: Shepard Fairey, Chris Reccardi, Gary Baseman, Niagara, and many others. "Art in the Dark," another show, was an exhibition of Arens' own pieces, images created using black light reactive paints and lighting rigs, which concealed hidden content that could be revealed upon the flip of a switch. In 2005, he traveled back to the Twin Cities, to exhibit a gallery show at Ox-Op gallery. The show was based around Spin-o-Paint / Paint-by-numbers / Oil paint.