thanks - it's hard doing an image with low light - i couldn't really see what I was doing sometimes, so had to keep turning the brightness up to see where i was. The realism comes from getting the perspective right and making sure the light hits the right areas. Then I paint rough marks with a grunge brush and skew them into place, over the objects which gets rid of the clean-ness.
Yes, remember that light is everything - we only see the reflected light of an object, not the object it's self. In this picture we are seeing the light from the sources, which is bouncing off all the objects back to our eyes. The objects themselves don't omit enough radiation for us to see with our eyes. I studied all of Einstein's theories too!
Yes I know. ^^ I had to declaim a department, few weeks ago. The topic was the eye, consequently I know the physics rules. But to train to paint it, I also have to do. This isn't a project for one day. I think I will need some years. >.<