SICA's work is in the collections of Le Musée Moderne de la Ville de Paris, The Victoria and Albert Museum, London, The Montreal Museum of Fine Arts, The Los Angeles Museum, The Brooklyn Museum,The Miami Museum of Fine Arts and New York University in addition to many other fine arts institutions and private collections.

Sica’s works express themes revealed in her personal observation of different cultures, both ancient and contemporary.  She believes that the artist, acting as an individual, must seek out the deeply rooted aspects of civilization and communicate this vision.