Just something to feed our imaginations when putting the Basement together :p
I know Rob is doing some concepts for the basement but I thought I'd throw this idea out there too.
We could have some weak lighting from ventilation ducts in the wall?
Reminiscent of emergency lighting -
Even though the light from above the basement exit is strong, I think it would look better if it is concentrated only within a narrow area. That way the rest of the basement can retain a mood that is dark and oppressive and the exit is your salvation or sanctuary from this.