He dresses them up with colorful portraits, created using stencils or freehand. His models? Often his daughter, Nina, and many anonymous individuals who populate the neighborhoods. A French street artist based in Vitry-sur-Seine, Christian Guémy, also known as C215, has been active since 2006 in the ugliest parts of the city. « Where I paint, it reeks of piss, » he says bluntly, explaining that the street art movement was born in the suburbs of New York as « a desperate attempt by people to take possession of the built environment. » In industrial areas where concrete has hitherto left no room for emotion.