LadySilverMage - I find that if I want to change my lighting so that it looks like the characters are in a darker setting, if I backlight them with either a dark green, or a dark blue spot light it helps to keep them from being lost in shadows, I also turn off the "cast shadows" box if I start seeing too many shadows where they probably shouldn't be. I wish I had more to contribute I've been messing around with light settings myself, but Anton's examples are better than what I've come up with so far.