Point well taken, Ulco - some lessons are learned none too easily...
This one came out in about 40 minutes. I sure did have to unplug and replug many nodes here and there but I think I have reached my personal benchmark in render times.
The planet has displacements, the atmo is denser, extra cloud layer. It adds up and is more than I expected. Really, I thought a 2 hour render was normal, for me anyway.
Not so much for critiques, but for observation. Less is often more it seems.
OUCH!!! Did NOT mean to upload that heavy of an image! I'll need to look into that.