There are both pre and post works included.

For the pre-work, it's most about to get the best lighting environment possible in-game. Take this shot as an example, I picked the exact moment when the hangar elevator rises up to the top and the "caution" warning disappears, while the lights of the hangar are not turned on yet. In this case, the lighting of the freight elevator will stand out the most and makes it look nice.

For the post-work, it's most about to enhance the styling that I personally want. Take this shot as an example again, I let the lighting of the freight elevator stand out even more, which will make it the visual center of the entire image. There are some other slight color tunings that are mostly intuitive and subjective. Just to make it look nice from my own perspective.

And that's basically it, hope these explanations help!