Body language, unconscious grace, studied and recreated by conscious design. A rare art in games, since motion capture and straight-out video came in the door. I wish it were done more often. The game takes place over the course of the day. And yes, the sunset looked great.
Someone knows what light is for.
I should mention the music as well. I quite liked it, although the sound loops are only about fifteen or twenty seconds long, which means that after you've been in a room for a while, you've had enough of that particular tune. It took me that long to twig. Yes, I know the theory of the endlessly-rising chords. But nobody's ever slipped it to me so successfully, in a real piece of music.