An audio slideshow about one of Libya's new street artists, 22 year-old Ibrahim Humaid. During the four decades that Col Muammar Gaddafi ruled Libya, his official portraits were everywhere. Now that he has been overthrown, artists are revelling in their new-found freedom and turning this tradition on its head. Caricatures of the vilified leader have been painted on walls throughout the country. Humaid, an engineering student, started painting caricatures of Col Gaddafi while he was manning a checkpoint during the revolution.