I would think that being able to draw a cartoon of Toussaint L'Overture might be a good starting point. I would probably depict the conditions of slavery that he had to endure and also would integrate the idea of teaching himself to read and write. This becomes a major element of the life of slavery throughout Haiti, in particular in San Dominique. I think that being able to depict this reality, from which Toussaint emerged might be a good starting point because it lends itself to being mythologized in cartoon form. It would be fairly easy to show the harsh conditions of life and then how individuals flocked to Toussaint when he started his campaign against Colonial leaders. Being the commander of batallions of that inspired other people of color to rebel could be another condition of life that you could depict. Overall, the fact that he was a revered figure for so many in Haiti might be where this lends itself to being depicted quite powerfully in cartoon form without trivializing it.