Asteinza's work favors an almost psychedelic feel, with concentric line patterns and abstract forms leaving ambiguous meanings. Her use of diverse shapes overlaying each other creates a labyrinth-like aura. Her choice of color palettes gives depth and perspective. Does it portray a DNA structure with a generation's worth of information? Or a still-life of captured frequencies?
Asteinza, Fillastre, and their friend Evan Galbicka opened an art space in a former Baptist church in Gainesville, Florida called "The Church of Holy Colors," an underground art gallery and music venue that serves as a haven for amateur artists, furnished with abstract murals and modern works. Moving throughout the country, Asteinza has collaborated with the city of Decatur, Georgia, the New Orleans Public Library, the Young at Art Museum in Plantation, Florida, and Hotel Peter & Paul, a de-sanctified Catholic church turned hotel.
Despite her success, Asteinza has still experienced intense misogyny throughout her career. A variety of people, from young viewers to close friends, have attempted to stymie Asteinza's voice. “The whole damn system is set up for men to succeed. We need women in charge and restructuring things to make them more equitable and accountable. I think there is a tendency for folks to not validate voices that aren't cis male and white and that's a crying shame because all of the other voices are what makes our country great. There is no such thing as neutrality and anyone trying to convince you of that more than likely has ulterior motives,” said Asteinza in a VoyageMIA article in 2019.