Born and raised in the Nemesio R. Canales public housing complex of San Juan, Puerto Rico, Edwin "Don Rimx" Sepúlveda developed his artistic voice amidst the rich textures of the island's culture and the challenges of his environment. Encouraged by his parents, he refined his craft early on, attending Central High School of Visual Arts and later studying at the Escuela de Artes Plásticas, where he merged classical training with an urban sensibility. Lorenzo Homar, Jose Alicea, Rafael Tufino, Antonio Martorell, Rembrandt, and Joaquin Sorolla are among the influences evident in his line work, color treatment, and poetic imagery.

In 2009, Don Rimx moved to Brooklyn, NY, a shift that profoundly impacted his work. The city's architecture, diverse communities, and raw creative energy became central themes in his evolving style. He developed a distinctive approach that builds compositions like architectural frameworks, incorporating wood and brick elements with vibrant geometric patterns to explore the connection between people and their environments. His murals became visual storytelling pieces, earning him recognition in The New York Times and solidifying his place in the contemporary muralist movement.

In 2014, Don Rimx relocated to Florida, where the warm climate and Latino culture drew him closer to home. Since then, he has left his mark on walls across the U.S. and internationally, painting in Spain, Germany, Japan, Ecuador, and Mexico. His large-scale works seamlessly bridge graffiti, fine art, and classical techniques. He has collaborated with major brands including Burger King, Converse, Apple Music, Maker's Mark, Starbucks, and Electronic Arts, bringing his distinctive vision to commercial spaces while maintaining artistic authenticity.

As a classically trained fine artist, graffitist, and grand-scale muralist, Don Rimx's work engages communities and empowers them to see themselves reflected in his art, creating murals that honor local culture and resonate deeply with the places they inhabit. Whether painting in his studio or on towering walls, he continues to push boundaries, using art to connect people, honor heritage, and transform public spaces into lasting cultural landmarks.