These graphics drawings and pictures are composed using simple lines and sometimes strong colors as example the Godfather of the classic graphic illustrations Kevin Eastman publisher and founder Leonard Mogel  "Heavy Metal Magazine".  

Heavy Metal 1977, illustration by Jean Henri Gaston Giraud (8 May 1938 – 10 March 2012) was a French artist, cartoonist and writer who worked in the Franco-Belgian bandes dessinées (BD) tradition. Giraud garnered worldwide acclaim predominantly under the pseudonym Moebius. He was one of my favorites.