Roa spent very little time in art school, learned to paint in the street practicing and working with a sign painter of his region. Roa´s distinctive graphic style is obsessed with animals and believe that they have much more to this world than any other creature. He explores the relationship between the dead and the living and the decomposition of a body. The use of contrast of black and white to represent the outside and red to the internal organs. Roa likes to work with the characteristic animals of each region depending on the country in which he is working.