most significant contribution was the design for the Queen's Witch form. Art Babbitt, an animator who joined the Disney studio in 1932, invited seven of his colleagues (who worked in the same room as him) to come with him to an art class that he himself had set up at his home in the Hollywood Hills. Though there was no teacher, Babbitt had recruited a model to pose for him and his fellow animators as they drew. These "classes" were held weekly; each week, more animators would come. After three weeks, Walt Disney called Babbit to his office and offered to provide the supplies, working space and models required if the sessions were moved to the studio. Babbitt ran the sessions for a month until animator Hardie Gramatky suggested that they recruit Don Graham, an art teacher from the Chouinard Institute. Graham taught his first class at the studio on November 15, 1932, and was joined by Philip L. Dike a few weeks later. These classes were principally concerned with human anatomy and movement, though instruction later included action analysis, animal anatomy and acting. Though the classes were originally described as a "brutal battle", with neither instructor nor students well-versed in the other's craft, the enthusiasm and energy of both parties made the classes stimulating and beneficial for all involved. Graham often screened Disney shorts and, along with the animators, provided critique featuring both strengths and weaknesses. For example, Graham criticised Babbitt's animation of Abner the mouse in The Country Cousin as "taking a few of the obvious actions of a drunk without coordinating the rest of the body", while praising it for maintaining its humour without getting "dirty or mean or vulgar. The country mouse is always having a good time". Very few of the animators at the Disney studio had had artistic training (most had been newspaper cartoonists); among these few was Grim Natwick, who had trained in Europe. The animator's success in designing and animating Betty Boop for Fleischer Studios showed an understanding of human female anatomy and, when Walt Disney hired Natwick, he was given female characters to animate almost exclusively. Attempts to animate Persephone, the female lead of The Goddess of Spring, had proved largely unsuccessful; Natwick's animation of the heroine in Cookie Carnival showed greater promise, and the animator was eventually given the task of animating Snow White herself. Though live action footage of