What is the fine-grained topic of the following text: Although her early self-portrait, The Inn of the Dawn Horse, conveys an exhilarating self-confidence through both the central figure and the animal surrogates around her, especially the galloping white horse, her Portrait of Max Ernst, which depicts the German Surrealist as his alter ego, Loplop, the Bird Superior, bears a mixed message: he carries a tiny horse trapped in a lantern, and the white horse behind him is frozen stiff. Only return the topic.
Analysis of self-portrait paintings by an artist