This image, or at least one like it has been in my mind for literally years now. Probably inspired by a couple of NASA’s space colony concepts of the 70’s, definitely by Ben Bova’s novel ‘Colony’, and obviously to an extent by Greg Bear’s ‘Eon and Clarke’s ‘Rama’ series!

Here is a link to a larger version

At any rate, after getting the newest version of Cinema 4D, with render instances, and speeded up sub poly displacent, I did a couple of tests with large amounts of trees, and then started to put this idea to the test.