Hello!
I'm the creator of those covers; I have just joined the forum at Leonor's suggestion.
If anyone is interested, prints of those covers are available not only on DeviantArt but also through my etsy store: https://www.etsy.com/shop/DecoEchoes. You can even buy the original vector files, if you prefer to get them printed yourself. Since only objectivists will likely buy them, I am not overly concerned about anyone violating copyright .
I would actually have to agree with Reidy about the We the Living cover; it is a bit too blatant. However, this is because all my Ayn Rand designs were originally done as hand-painted canvas posters, not book covers. I had a few more abstract concepts, but the client who commissioned the posters insisted on my depicting the final scene from the book.