Deathstar Immortal

Here is another example I came across where Powers went back to a previous painting and did a "paint over", changing the contrast and adding elements (abstract figures and flying gizmos), etc.

The original painting was done for the novel "Deathstar Voyage" by Ian Wallace (Book Club 1969).  Powers later altered this painting to create the cover for "This Immortal" by Roger Zelazny (Ace 1988).

Personally, I love the redo!  I have noticed a trend to his "paint-overs" whereby he routinely reduces the contrast of graphic elements, adding depth cues, and pushing the piece away from graphic illustration towards a more "fine art" approach.