Great, great work just looking at the pictures!

I'm working on my version of Outpost#31 (Sketchup 2017) and my personal sense of aesthetic prevailed even if I watched the movie thousands of times (last one, just yesterday by he time I wrote this comment). I will update to the portal when completed and send link here.

Anyways, this is the best and most accurate I ever seen around the net.

Great job!