My new tablet arrived in the mail today. It is much larger than the one I have been using for the past five years, so I immediately tested it out with some more environment concept thumbnails! These are a lot blockier than my first round and I don't think I really warmed up until the third, the ruins on the coast, but that is what ideations are for.
My older computer has lost about a fifth of its screen so I worked zoomed in. I did not zoom in for these, and I think that explains the lack of detail (in comparison to round 1, below). My newer computer will be able to handle the layers needed to create more detailed work, and I am looking forward to bringing one of these thumbnails to completion.