Yves Chaland. French comics artist/writer. Part of a group of artists that created a retro style based on European comics from the 1940s. His works can be found in various publications including the mega-series, Metal Hurlant. Sadly, Yves died in his thirties in the early 1990s.
Paul Cuvelier (22 November 1923 - 5 August 1978, Belgium) is one of the classic European comic artists... - http://www.afnews.info/wordpress/2015/11/22/paul-cuvelier-22-november-1923-5-august-1978-belgium-is-one-of-the-classic-european-comic-artists/