Hedvig Sønstabø Thorkildsen is an artist with a master's degree in art from the Bergen Academy of Art and Design, as well as a bachelor's degree in specialized art with a focus on graphics. She is actively involved in the art community as a member of several artist organizations, including Norske Billedkunstnere (NBK) and Norske Grafikere. Thorkildsen has also held several positions in artist associations, where she has served as a board member and deputy chair.
In her artistic work, Thorkildsen uses light, color, plastic and metal, and she explores themes related to nature and landscape. She has actively participated in the Statens kunstutstillingen, known as Høstutstillingen, which is an important arena for contemporary art in Norway. Through her involvement and her artworks, she contributes to the Norwegian art community.