Well, I have been thinking and thinking again about the "too blue"-critique, which rests on the windows and inside lights of the train car being too blue, and I cannot come to the conclusion that this is necessarily right.
Therefore I went to my original files (those which are SOOC, as it were) to also find out what white balance my little Powershot was set to at the time, and now I know more.
A) This photo was taken on 5 December 2005 (i.e. three weeks before I got the 350D

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B) White balance was set to "artificial light" (which is not "tungsten" but this other, you know, that is in light tubes). Which should mean that particularly the light inside the train car is the right colour.
C) All other photos taken at the same time (i.e. as night fell, on an overcast, wet day with occasional drizzle) are equally coloured.
D) I apparently never did anything to this photo in Photoshop at all. The original and the one presented here look all the same, other than that this one here is smaller, of course.
I kept staring at the reflection of the orange platform lights on that wall of the rain-shelter (underneath the platform numbers 3 and 4, you see?) and I find that if the entire photo were too blue, the orange would be sort of "blue-ish", but it isn't. Neither is the light reflection on the side of the train car blue, but orange - however other parts that reflect this very blue (surprisingly blue it was, but we get dusk situations of the kind here and there) sky are blue, of course.
I quickly threw together a five-photo collage of other pics taken on the same day in the same location (found them when I looked up the original of this one here), and look:
Only when it had grown really dark the blue cast disappeared (but the white balance got never changed throughout). I think it really was in the atmosphere at the time.
Back in December of 2005 I photographed several "blue hours" and have series that are called just this, just because I was so fascinated by the phenomenon.
What I do see in the original post, though, is the leaning wall on the left - but then a compact digital camera such as a Powershot doesn't have a shift lens ... and my ancient (stone-age!) version of PS still does not feature any means to straighten lens distortion lines.
