Richard Corben is an amazing artist. His most famous work is Den for Heavy Metal Magazine in the 1970s, at a time when that publication was something special. Back in the days when illustration was considered something different than and less than fine art it was always forgotten that almost all illustrators were also “fine artists” even by the most conservative definition of that term. Corben, for instance, has always produced work for no other purpose than self expression.
His website can be found here.