Andres started working professionally doing some books for Avatar Press, like Joe R. Landsdale The Drive-In, By Bizarre Hands, or Yuggoth Creatures. He also didPistolfist: Revolutionary Warrior for Alias, and other books like Helios: Under the Gun and Purity for Dakuwaka, and Ape Entertainment's Cartoonapalooza.
He started working for Marvel as penciler of the Son of Hulk ongoing, written by Paul Jenkins, and after that, he did Dark Reign: Hawkeye #5. For DC Comics, he's done Gotham City Sirens #10-#11 & #13, with inker Raul Fernandez.
After finishing Joker's Asylum: The Riddler, a standalone story, but part of the month-long Joker's Asylum event, also for DC, Andr's penciled Gotham City Sirens #14-17. He also worked on Namor: the First Mutant #4 for Marvel, and returned to DC, becoming the Gotham City Sirens ongoing artist until the book ended.
Andres has also drawn Red Lanterns, Resurrection Man, Nightwing; Hypernaturals (for BOOM! Studios); Justice League of America's Vibe; Justice League and JLA (Martian Manhunter backp stories). After working on a Superboy arc with the legendary Marv Wolfman, he became the ongoing artist on Justice League Dark until the book's finale.
Andres is currently drawing Sensation Comics Feat. Wonder Woman for DC Comics.