 Zinkeisen shared a studio in London with her sister during the 1920s and 1930s from where she embarked on her career as a painter, commercial artist, and theatrical designer.Zinkeisen's realist style made her popular as a portraitist and she became a well-known society painter.The subject matter of her paintings, society portraiture, equestrian portraiture, and scenes from the parks of London and Paris reflect the lifestyle of the upper class at the time.