Sci-Fi Railway Facility - UE5 Relight

Hello! 
This is a little lighting practice I did, my goal was to create two different lighting scenarios. 
For the first scenario I have decided to create Mars like atmoshpere, I have used DOOM 2016 and some Mars pictures as a reference to slightly base my relight work on. 
For the second scenario I have decided to create something of my own, some type of cold moody overcast lighting. 

Any Feedback is welcome! 

Original Dekogon scene: https://www.fab.com/listings/1f58f06d-271f-42c2-bffc-1683cd00e2d2