Artists I enjoy:
  
  M.C. Escher EG  
  Salvador Dali EG 
   Henri Rousseau EG 
   Pablo Picasso is sometimes nice, eg Portrait of Ambroise Vollard EG 
   Georges Braque EG 
   Marcel Duchamp EG 
   Yves Tanguy EG 
   Emilio Vedova EG 
   René Magritte EG 
   Paul Delvaux - surrealist? EG 
   Roger Dean apparently did a lot of the Yes cover art  EG 
   Georgia O'Keeffe  EG 
   Gérard Garouste has some nice pieces  EG 
   John Atkinson Grimshaw (Victorian)  EG 
   Giuseppe Arcimboldo, EG The Librarian and that carrot one  EG 
   Till Nowak - his tributes to Arcimboldo are nice, among others.  He has some nice animations as well  EG 
   Sarolta Ban  EG 
   Aubrey Beardsley  EG 
   Victor Vasarely  EG 
   Patrycja Makowska does photos of derelict mansions, churches, etc.   EG 
   Brian Froud EG  
  Trina Merry EG  
  Xavi Bou does interesting time-lapse photos of bird flight  EG  
  Ruth Asawa has some nice wire sculptures  EG  
  H.R. Giger is good.  He did the Xenomorphs in the Alien films   EG  
  Zdislaw Beksinski was a Polish horror painter who reacted to the horrors of war  EG  
  Dr. Seuss has some very interesting work, apart from his children's books:
    
   Jerry Sandefur is good.  He's a digital-native artist that does a lot of fantasy/sci fi themed work:
    
   David Zinn, the horsetopus guy who does 3d-looking chalk art on sidewalks and things.  I saw something like this in SoCal once - was it him?  I think it was probably Huntington Beach, back when I was riding my recumbent a lot:
    
     Boris Vallejo - fantasy art, photorealistic, frequently with dragons or other animals, and body builders / fitness models  EG  
    Maliwawa figures are Australian Indigenous cave pantings  EG  
    Isabella Clever, child artist, hyperrealist:  EG  
  Heinrich Kley is interesting.  He does mostly monochromatic fantasy-themed pen-and-ink. I've heard that he sometimes satirizes the church. He was banned by the Nazis. EG  
  Yamamoto Akane
  
   Rob Gonsalves is rather Magritte-like
  
     Pedro Friedeberg