Back in the day ,Before PC's ,to find fantasy Art was not easy.
About all we had was
Heavy Metal Magazine when & if they published .
& Spencers in the Mall had posters.

Herd about Luis Royo ,Boris Vallejo from Heavy Metal Magazine.
There Art would be on the cover but they did not make comics.

Think I herd about Olivia De Berardinis in a Air Brush book.

Those are the only 3 I can think of that where famous just for being Artist.
They are the best thou.

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The Artist that will fight for decades to conquer their media.
Even if you never know their name ,your know their Art.
Dark Sphere Mage Vengeance