I started with the "Sci-Fi Greenhouse".
My second creation was the "Sci-Fi Drill".
The "Solar Panel Installation" was my third creation.
Next up was the "Bug Train". It's an all
is a play on Buggy, also the main body design somewhat looks like an insect's carapace.
So far the last item is a "Micro Sci-Fi Greenhouse".
I'm trying to unify the look of all these designs by using a fairly
strict color palette. White and Lime Green are the main two
colors. Black is a secondary color along with Trans-Light Blue.
You can see these pieces being used in a couple of games, here and here.