That first image - with the flying-wing aircraft and the red train - that simply cannot be by Arthur Radebaugh! Why? Thats because the two cars in it are obviously both modern Audi's - and since he died in 1974 , this picture must be of the "Influenced by....." type of thing...
After some more searching, it seems that it was from an Audi Calendar in 2011, and was created by Roma Erohnovich - you can see the full calendar HERE
Thanks Graeme - I meant to separate that one out!
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