Just spent an hour I could ill afford reading interesting articles and looking at pretty pictures at www.comicartville.com, a terrific compendium of comic art history. At the moment, they have — among other goodies — a lovely gallery of Alex Toth art, a good article about Doug Wildey's career, a memoir by Shel Dorf about lettering for Milton Caniff, a discussion of Russ Heath's art and an essay on Al Williamson's art for the Flash Gordon comic book. The above illo was cribbed from the Williamson piece.
Nothing more I need to add. If any of those names mean anything to you, click on the link and go spend an hour you probably can't afford, either.