Oh yeah! A great abyss! The light coming from beneath is excellent! Thats exactly the tricky part in creating great depths. You just got to have lighting to make the objects/surroundings visible, but if its to bright, it doesnt look deep. But youve pulled this of just great! BTW, ive just IMd AgentSmith about that banner. Can understand if it creates some confusion :)

Rudolf Herczog
Digital Artist
www.rochr.com