Since my render time issue has been resolved, I can now afford to create (and discard) several images a day instead of working all day on just one. And this is just one. Done in 22 minutes.
I chose "Revelation" as the subject name because essentially the render node was the main influence. I tested it out by plugging in several different displacement setups. I found some had little or no effect and only one so far that did by nearly tripling the 22 minutes. Still, that's not bad at all providing that I'm willing to sacrifice a shorter render to get a desired result. I also tested out Path Tracing, and it was about 1-1/2 hours to complete. And not as good as without.
Well, anyway I hope I don't bore you with my exoplanetary themes.