Old Subway

I'd suggest taking a look at Birn's subway image from 1995: http://www.3drender.com/jbirn/thesis/Tunnel.html there's a lot more than can be done here to introduce some mood into the scene.

Rendering wise, this is pretty darn good. I just can't figure out why you chose to render this? There's no subject in the image, no activity, people, trains, etc. Not sure why I'm looking at this, or for that matter why I'd be down in the tracks contemplating my suicide near the electric line. - ok, a little dramatic, but still....