[CLICK IMAGES TO ENLARGE]
When I saw that second cover with the raggedly applied paint, the swooping linear accents, and the colourful little shapes fluttering along the edges of the forms, I immediately was reminded of certain works by Bill Sienkiewicz and by his teacher/mentor, Barron Storey. Like this well-known cover, for instance:
But would either Sienkiewicz or Storey recognize Powers as an influence? I have no idea…
BONUS LINK:
The Powers Compendium — the images are tiny, but there sure are a lot of them! I see that the Compendium site also includes that same little scan of the wraparound Brain Wave cover.



