I was watching the Buck Rogers in the 25th Century film recently, this was the pilot for the TV series that was run theatrically. I always loved the Matte Paintings in the film that Syd Dutton created.
There's something that still appeals to me about the old style matte work than the new slick digital stuff, I think old school matte paintings have a very stylized look, and back in the day they were primarily used to set up a location in just one particular shot, so they were something to look forward too, but by the time we got to films like the Star Wars prequels were every shot on Coruscant was glossy and impressive I always wished for the old less is more adage.
If you look at the top right corner of the bottom left picture you can see the brush strokes on the unfinished edge of the painting, I suppose this would have been cropped on the 1.85:1 cinema print. The shot of the ruined city really reminds me of the matte work from Logans Run and Earthquake, again not 100% realistic but it has a great artistic quality to it.