well that is some really bad graphics
But back to Metro. I think the bouncing is more or less ok, but the material does not absorb enough light on their bounces. In many scenes there is just to much light overall even though there are very rough materials (like wood, bricks or concrete) used. It just needs a bit more fine-tuning (IMHO). Same for the candles, they still emit a bit to much light.
The other problem I have with some of those screenshots, when you play an outdoor "level", you always have some clouds or even snow storm. But as soon as you are in an indoor "level" it seems to be midsummer without any clouds, ...
Well again, finetuning still needed