A modernist painter, Bellette was influential in mid-twentieth century Sydney art circles. She frequently painted scenes influenced by the Greek tragedies of Euripides and Sophocles and the epics of Homer. The only woman to have won the Sulman Prize more than once, Bellette claimed the accolade in 1942 with For Whom the Bell Tolls, and in 1944 with Iphigenia in Tauris.