She studied art at the University of New Mexico and University of Wisconsin at Eau Claire, and has continued her studies at the Southwest School of Art and the Coppini Academy of Fine Arts. Polnaszek works in oil, watercolor, graphite, and printmaking. Particularly drawn to the human form and in documenting the human experience through her work, she is influenced by both her love of biological science and anthropology.
In addition to participating in numerous exhibitions in the Austin-San Antonio area, Polnaszek has received awards for oil painting at the Southwest School of Art and at the Round Rock Arts Imagine and BIG exhibitions at Texas State University . She has received awards for watercolor at the Coppini Academy of Fine Arts, TWS, and Waterloo Watercolor Society.. She has been featured in the publication SPLASH 15. She has shown work at the Western Federation of Watercolor Societies, Texas Watercolor Society, International Watermedia Exhibit – Houston, Texas State University-Round Rock and Waterloo Watercolor Group juried exhibitions, and at Georgetown Arts Center.