BT, from your link above:
http://nzpetesmatteshot.blogspot.com/search/label/Harrison%20EllenshawHarrison Ellenshaw is the MAN when it comes to matte painting, especially from sci-fi movies -- the Star Wars trilogy, The Black Hole, TRON...
Speaking of which, here's one of my favorite matte paintings, if only for its simplicity and prescience/foresight of the coming domination of computers in the workplace:
The ENCOM cube farm from the beginning of the film, Harrison's one and only matte painting for TRON. I couldn't find a nice shot of it on the Net, so here's a scan from my extremely well-worn copy of
The Art Of TRON by Michael Bonifer (1982).
Though only the right half was used on the film, I was happy to see that the posted link above does have a pic of Harrison looking through the matte painting...