Sehr Gut!

as painkiller already said: the atmosphere is really great.
I would like to comment that the gates/doors look a little unnatural,
especially in the first screen.
In the third screen, you might like to adjust the brightness of the gate so it merges better with the shadow it is in.
Also,if you want the shadows to be really great, you can adjust the shadow map quality. it must look really well when the shadows are better quality.

[edit] about the low quality lights: sorry! but actually I can hardly read german, so I skipped the text
keep working, it looks good!