Marta Ayala is a Salvadoran-American painter and a woman muralist in San Francisco. Her work involves experimenting with colors, themes, etc. She is not tied to a single theme, medium or style. The majority of her work revolves around engaging with the community by collaborating together with other artists and teaching classes. She experiments with various colors and uses easily definable lines in her paintings and murals. Ayala's paintings and murals display a mix of colorful images reminiscent of childhood, earthly materials such as rocks and water with a mix of ancient culture. This is the reason for the word "primitive" to describe her work.