Re: Space art
Well, I'm afraid not. I've looked theough Google and never found anything substantial about Rudaux (other than a few lines without pictures) on the net.
He wrote a book: "On other worlds" (Sur les autres mondes) but even that one is not found at amazon.com or any french online bookshop.
About Mars, Rudaux only painted Mars the way he saw it (a disk with spots); I'm aware of paintings from the surface (there is one of Mercury, but just like the Moon, from the surface).
Rudaux died in 1947.