Because the scene seemed too plain, I decided to add volumetric fog. It was a hard decision to make because I knew that adding the fog would greatly impact my rendering times.
Before deciding to stick with the volumetric fog I tried another method. The idea was to render the foreground, middle ground and background separately and then play with the settings to mimic the fog. That proved to be a complicated method with worse results. In the end I decided to sacrifice the render times in order to get a better looking result. I also decided to add 'light fog' for my flashlight (spot light).
As seen in the following renders, achieving the right results took many tries.
Initially the decay of the light was set to be Linear and the fog ended abruptly. To fix the problem, I set the decay to be Quadratic and I also needed to increase the intensity.
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