Is it compatible with the mod that makes illuminated windows at night and then the lights go off at 6am?

Both Illumination Within and Animated Window Lighting System (which you can use simultaneously if you want IW's light sources on vanilla buildings and AWLS's versatility) show up just fine with All Natural and Immersive Interiors installed, when you're outside. But if you're inside a building, looking out through a window at the city Immersive Interiors has added, you have to use AWLS if you want to see other windows lit up at night. So either, or both, are fine when you're outside, but only AWLS works when you're inside. It's pretty damn impressive looking out at the city and being able to see a bunch of windows on other buildings lit up, considering how far beyond the vanilla game it is.

Thanks, I'll install them both and hope my game doesn't go BOOM.

If you mean both IW and AWLS, make sure to follow the directions for it in the AWLS readme since all you need from IW is the light sources, It's actually such a minor visual improvement, lighting up the area around the window, but I'm uncompromising and love it. :teehee: