This is Taillefer from the French comic series Les Sentinelles.
While my Dr. Grordbort's Exhibtion was in Nantes a couple years back I met Julien Mokrani who's making a film adaptation of the comic and I did a quick interpretation for him of the main character.
Looks like it could be bloody epic, and anything that features robotic soldiers fighting World War One has my vote.
A write up about the film version here at Le Figaro.
