Aside from overt Pop Art stylistic tropes, Niagara also incorporates influences of the Pre-Raphaelite movement, which with some friction honored both Romanticism and Realism and depicted strong if not tragic women such as the famous "Ophelia" by Millais, or "The Blue Bower" by Rossetti. She also took cues from the Decadent movement, which was in turn influenced by Gothic fiction. Art Nouveau imprints her work with its swirling, floral-inspired, whiplash lines and the belle époque women of Toulouse-Lautrec. As a child, Niagara was enamored of John R. Neill who illustrated works by L. Frank Baum and others.