I'm not sure whether this was intentional or not but the fact you changed the skybox environment to be a purely night, kinda ruined the effect because many maps are now way too dark.
The original lighting effect that came with the skybox looked great because buildings and other locations would have shadows that adjusted accordingly, allowing you to still see in areas that were exposed to the moonlight but not in areas that should be dark such as alleys. Indoor locations that have light adjusted accordingly so places such as Bank Heist where its naturally lit will still retain visibility, while areas that do not have light sources are dark. Making the map completely night ruins this light effect when outside as thats what made certain heists look amazing. If you could just re-add that feature as "Moonlight" or something, that would be much appreciated!

Here is a comparison of what the mod originally looked like before you removed the outside lighting effect :

Notice the shadows and lighting on the outside (Note : I have the BHD filter on which gives it that luminescent blue lighting. When using no filters, that area is just lit)

And here is the heist now. Still has BHD Filter active with brightness toned down just as before