Golden City - original comic art

Golden City is a French science fiction comic book series written by Daniel Pecqueur, drawn by Nicolas Malfin and coloured by Pierre Schelle. It has been published since 1999 by Delcourt.
On the ship-state of Golden City, a privileged population lives far from the coastline impoverished by the rising waters. But in the city's secrets, its leader Harrison Banks is going to be the victim of a plot to replace him with a clone.