Read the excerpt from Frida Kahlo by Hedda Garza. When Frida Kahlo entered the Ministry of Education building clutching three of her paintings, she gazed awestruck at an amazing sight. Up to a height of three stories, the walls were covered with dozens of huge murals vividly dramatizing the history of Mexico's persecuted Indians. Diego Rivera, perched high up on the scaffolding, was putting the finishing touches on five years of labor. He did not notice the small figure on the ground floor. What do the underlined words indicate about the author's feelings toward Diego Rivera's artwork?