from alias, right so in that case you really need to sort out your lighting. What's you're setup? one area light? you need to think more about the mood of the piece (which admittedley is dark). I would try and get some nice contrasty stuff going on between the light and dark areas (but be more subtle than you are at the moment. It feels odd that in your pic the stuff at the back of the room is very brightly lit whilst the stuff at the front, including the character are very dimly lit if at all.... that make me think you are trying to compensate for poor modelling etc by hiding it with darkness (which there is nothing wrong with if it saves you time and doesnt degreade the piece) however in this case the piece is suffering heavily because of it. If you have a character in a scene then it should be lit and not just left in darkness...
Hope this helps
Alan
Technical Director - Framestore
Currently working on: Your Highness
IMDB