Those pics are long and some of them multiple exposures (3, 4 and 5). I steadied the camera at the column and shot straight up, always pressing the release for more than a second (don't know how long since I went on my inner clock). The light color changes over time, that's why I did the multiples to see how they come out. Pretty funny I think.
I love photographic experiments like this. Makes me feel like a real photographer.