Moebius had a unique and influential imagination, shaping the look of the films Alien, Blade Runner, and Tron. His own comics Arzach (later "Arzak"), Blueberry, and The Airtight Garage are full invention, blending a mystical vision with down-to-earth details.
Many of his early works were full of baroque detail and cross-hatching; later, he strove for a simplified elegance. He had a prodigious drawing ability, improvising all sorts of characters in all kinds of angles and actions without any reference.
This news comes right on the heels of the passing of Star Wars film designer Ralph McQuarrie, another huge influence on me when I was starting out.
(Video Link) Here's a vintage film of Moebius drawing together with Hugo Pratt.
Porfolio of his works at io9
Lines and Colors tribute
Previously on GurneyJourney
Moebius and Miyazaki