House of Fallen Trees

Has anyone else ever noticed the intense lighting effects that happen inside at night when you play the House of Fallen Trees downtown? I thought it was just because of the lack of lighting or the placement of the lights, but even after I added a bunch of extra lights (yes, to a huge empty room), I was getting these crazy highlights and shadows. And the sims hair is often lit up, as seen below. Is there something about the way this house is built that causes this, or am I just imagining all of it?

This is Ripp's baby from that last post, the adorable Ron Grunt. A nice blend of both fathers, don't you think?

 
 

Update: I just read the wiki entry on the House of Fallen Trees, and it also mentions the dimly lit quality of the house. How was this effect created, I wonder? Does anyone know? I was thinking that maybe the ceilings were created a little higher, but I remember removing a wall in one of the rooms and I didn't notice anything.