In 2002, he drew attention with his animated short film “Biotope,” which he wrote and directed. Supported by the CNC and Arte, he continued the experience with a second animated short film titled “Clichés de soirée,” selected for the “Cartoon d’or” prize in 2009.
Later, Merwan’s shift to the comics world took place with “Fausse garde” (Vents d’ouest, 2009) and “L’Or et le sang” (12bis, 2009), a saga involving creators Fabien Nury and Maurin Defrance. In 2010, in collaboration with Bastien Vivès, he began work on “Pour l’empire” (Dargaud; “For the Empire,” Europe Comics), an engrossing adventure trilogy.