Yes, the first one is quite heavily edited, but not because it was bad to begin with, but because I wanted to make it look a bit more artistic, so it'll have a certain mood.
The rest of the 3 first photos were white balanced to the nearest white in the photo. Since they were all reasonably long exposures, I could "push" the lighting up naturally without it affecting the photo quality. If I had something moving in the photos, it would definitely have gotten blurred though.
The rest of the photos were taken with a wide open aperture on that same (old) lens, so they can be a bit soft.