Saturation set to 1.1, contrast set to 1.2, gamma set to 0.8. Min and Max EV set to -0.5. Path tracing turned off because it caused framerate issues. My main goal was to make the nighttime scene actually look like night. Through some trial and error, I was able to accomplish this goal. I had gotten some feedback from people that the scene was too dark, so I changed the skylight to 1 lux to 3.5 lux. This ended up fixing the problem. I also moved the positioning so the shadows weren't cast quite as far. The images above are before post-processing and after.