He works with painting, drawing, printmaking and photography. His work covers different themes that he considers to be metaphors for existence: letters, writing, light, construction, cartography, and most of all, different scales of the plant world, out of which he creates images transfigured by memory. Over time his work has branched off into constant experimental variations. It has been exhibited regularly since 1975. Vélez obtained a degree in Architecture in 1973 at the École d’Architecture UP8-Paris- Belleville.