Question: What revolutionary movement that sought to define a Mexican identity did this Mexican painter whose work includes "Self-Portrait with Thorn Necklace and Hummingbird" participate in?
Sentence (from "Julia López"): In the capital, she was hired as a model for artists at the Escuela Nacional de Pintura, Escultura y Grabado "La Esmeralda" and as such became part of the circle of notable artists of that time.
Relevant evidence: No