Wwll, admittedly the screenshots were taken from the more advantageous points of view where the lack of shadowcasting is less obvious. Incidentally these are also the typical player's points of views which is why this apparent lack of a feature hasn't yet let the customers stage a revolt.

And I will freely admit that there are a lot more things that could be done to increase the visual appeal of a scenery. This will become apparent when you directly compare the same scene with certain shader effects active (or not). Eventually we'll brush up our engine a little.