Most of his earlier paintings were made at the Secretariat of Public Education, Mexico City. These paintings were mainly concerned with the Mexican society by the reflecting the 1910 revolution in the country.
He made his paintings on his own-invented style based on large but simplified images with bold colors. Even though he made a lot of paintings, a number of them are significant even to date (Burt, 2003).
Just like the artworks of Steles of Maya, Rivera’s artworks use the same fashion as they tell a story. Looking at his artwork painted in 1928 called En el Arsenal show Tina Modotti with an ammunition belt on the right facing Julio Antonio Mella on the left with a hat and with Vittorio Vidali with a black hat in the background. His radical stand in attacking the church and the clergy as well as his political beliefs made him to be viewed in controversial ways. In this painting, he was criticized since some people thought that he was aware of the assassination of Mella by Vidali even before the assassination was done (Larrea et al, 1987).