Hi @macoll, good to se you here as well! Thanks! yea, I am playing around with the idea of putting these up on marketplace.
@arrpeatwo4: wow, thanks!! That is a great compliment! interestingly, I have not used any of his works for this, but, I will look at some and maybe I pick up things that I can use to improve this environment. 
Compliments well earned, you did a great job. As a reference for the Stalenhag stuff, Daedulus51’s Unreal Lighting Academy does a great breakdown of his work in the very first episode. Things like how he contrasts against the sky, desaturated colors, and creating warm points in cold environments are what he goes over.
I’m not saying your lighting needs work, I think everything looks incredible, just that it’s a macro perspective on lighting and a particular style.
Cheers!
Update:
Playing around with adding some cloth in some places, still early but I like where it’s going:)
https://s8.postimg.org/fdu6vh53p/harvester_cloth_WIP.jpg
https://s8.postimg.org/n7usgvcwl/Refinery_air_Lock_cloth_WIP.jpg
Hi all, i’m going to call this one done. it was super fun to make and please visit my website (direct link: https://www.poligonz.com/harvesters ) for around 80 more images of this place. Thanks!!!
https://s30.postimg.org/htyzr4hox/Harvesters_final_1.jpg
https://s30.postimg.org/c72mtnf69/Harvesters_final_2.jpg