The question is: An RPG with great art?
A great many role-playing games have fantastic art; work that really adds to the general vibe of the game.
For example:
The most recent edition of Runequest; Free League’s The One Ring; and then there’s The Wildsea.
If I had to pick one right now (which is in fact what I’m doing here), I’d have to go with Ultraviolet Grasslands and the Black City.
I only have the first edition at present, and I’m not sure how the art differs (if at all) in the 2nd edition. But the first UVG is a glorious ‘psychedelic metal’ world of Moebius style art and Heavy Metal style European weirdness.
I’ve not run it yet, but the setting is incredible and the game looks amazing.
Strange and beautiful