Terrance Lindall: John Milton's Paradise lost
Through no fault of my own, I recently discovered that the Heavy Metal illustrator Terrance Lindall published a number of illustrations in 1982 as homage to Paradise Lost, one of which you see above and several of which you can see online at the Williamsburg Art and Historical Center's Gallery, which had a Terrance Lindall Retrospective some years back (May 13-June 11, 2000) and which still maintains some of these images online (though a couple seem to be missing).
Noted art critic Leo Steinberg calls Lindall "a latter day Bosch," which looks quite apt to me.
I didn't know much about Lindall, but the Wikipedia article makes him sound like an interesting person, with a background in philosophy among other things ... but I'll leave that Wiki reading up to you.
For an appropriately diabolical image of Lindall, go here.
For other illustrations to accompany your reading of Milton's epic poem, go to Donald I. Ulin's Paradise Lost Illustrated, which has images by William Blake as well as links to images that George Klawitter has collected showing Miltonic illustrations by Gustave Doré, John Martin, John B. Medina, Edward Burney, Richard Westall, and Francis Hayman. Unlinked by Ulin but also available at Klawitter are Bernard Lens and Henry Fuseli.