One of the strongest urban scene painters working today, Aronson's painterly urban landscapes combine precise realism with gestural immediacy and Abstract Expressionist energy. His work has become influential among, and emulated by many contemporary cityscape painters. His paintings are included in the permanent collections of more than fifty museums throughout the U.S. and abroad, including the Museum of Fine Arts, Boston, the Virginia Museum of Fine Arts, the De Young Museum in San Francisco, The Museum of Fine Arts, Houston, the Eli and Edythe Broad Art Museum, MI, and the Suzhou Museum, Jiangsu Province, China, as well as numerous private and institutional collections.

In recent years his cityscapes have evolved to include contemporary social realist themes "...in which Aronson moves the human figure from its lesser role within the larger urban landscape, into a full subject of its own. Echoing his dramatically lighted single object still lifes, the solitary figures have now taken their place on stage with equal poignancy." Exhibits at the Tibor de Nagy Gallery, NYC ("Risk and Reward", 2010) and the Ogunquit Museum of American Art, Maine ("Aronson to Aronson", 2011) revealed a new emphasis on social realism in a series of paintings with Wall Street themes exploring the contemporary world of big business. His "... scenes of the New York Stock Exchange floor in particular reveal one of the most energized and sophisticated brushes in the country. His high-contrast tones, boldly thick paint and slashing marks perfectly mirror the fast-moving, high-powered and high-tech world.