This Prize for Artwork is awarded to comics authors at the Angoulême International Comics Festival. As is the customary practice in Wikipedia for listing awards such as Oscar results, the winner of the award for that year is listed first, the others listed below are the nominees.
2002: Le cri du peuple: Les canons du 18 mars by Jacques Tardi and Jean Vautrin, Casterman
Le Ché by Alberto Brecchia, Enrique Brecchia and Héctor Germán Oesterheld, Fréon
Les entremondes: Les eaux lourdes by Emmanuel Larcenet and Pascal Larcenet, Dargaud
Monsieur Mardi Gras Descendres: Le pays des larmes by Eric Liberge, Pointe Noire
Les olives noires: Pourquoi cette nuit est-elle... by Emmanuel Guibert and Joann Sfar, Dupuis
Sin City: L'enfer en retour by Frank Miller, Vertige graphic
Ubu Roi by Alfred Jarry and Daniel Casanave, 400 Coups
2003: Le dérisoire by Olivier Supiot and Eric Omond, Glénat
Hellboy: Le ver conquérant by Mike Mignola and John Byrne
Dr Jekyll et Mr Hyde by Jerry Kramsky and Lorenzo Mattotti
Manhattan Beach 1957 by Hermann and Yves H.
Oscar et Monsieur O by Emmanuel Moynot
Vitesse moderne by Blutch
2004: Blacksad: Arctic Nation by Juanjo Guarnido and Juan Diaz Canales, Dargaud
Le commis voyageur by Seth, Casterman
Les contes du 7ème souffle: Shiro Yuki by Hughes Micol and Eric Adam, Vents d'Ouest
Le curé: Le jugement by Christian de Metter and Laurent Lacoste, Soleil
Hulk: Banner by Brian Azzarello and Richard Corben, Panini Comics/Marvel
Léviathan by Jens Harder, L'An 2
Ping Pong part 1 by Taiyo Matsumoto, Delcourt
2005: Le Sommet des dieux by Taniguchi, Kana
Donjon Monstres: Les habitants des profondeurs by Patrice Killoffer, Joann Sfar and Lewis Trondheim, Delcourt
L’enragé by Baru, Dupuis
La Malle Sanderson by Götting, Delcourt
Les mangeurs de vie by Hampton, Les Humanoïdes Associés
Smart monkey by Winshluss, Cornelius
Wolverine: Snikt! by Nihei, Panini Comics
2006: Le vol du corbeau part 2 by Jean-Pierre Gibrat, Dupuis
Chocottes au sous-sol by Stéphane Blanquet, La joie de lire
Cinéma Panopticum by Thomas Ott, L’Association
Gogo Monster by Taiyou Matsumoto, Delcourt
Mitchum by Blutch, Cornélius
Prestige de l’uniforme by Hugues Micol and Loo Hui Phang, Dupuis
Quimby the Mouse by Chris Ware, L’Association
Angoulême International Comics Festival Prize for Artwork Wikipedia (Text) CC BY-SA