This project finally came to an end! I used the free environment 'Old West Learning' and did an additional pass on scene layout and lookdev. I used some Quixel Megascan assets to push the scene overall quality a bit further. I spent around 4 nights on this scene, mainly focusing on lighting and trying to push the boundaries of Lumen and get better results with it. I used custom Lens Flares in the engine to have advanced control. For the Fog, I use multiple elements, the main Exponential Height Fog with another 2 components which are Local Fog Volumes and Fog Sheets. I used Easy Fog for the custom Fog Sheets.
It was a very nice Lighting Study that I learned a lot from :)
Lighting Detailed Breakdown
Lighting - General Breakdown
Lighting Progress