I'm currently making an indie game using the Gold Box/Unlimited Adventures engine, which is a slightly less actiony close cousin to the Eye of the Beholder games. UA has an art archive, which I know includes a fair amount of art derived from the Eye of the Beholder, Dungeon Master, and Lands of Lore series, and probably other games in the 1P dungeon crawler genre.
I got the idea after someone in my Discord group started raving about "The Great" Rick Parks behind the artwork from Land of Lore: Throne of Chaos. So I opened up Lands of Lore and indeed some of the artwork is pretty awesome.
If there aren't art archives, I'd love to hear what people well-learned in dungeon crawler lore think are the prettiest games. I really loved Scotia's Tower from LoL: ToC.
