I took this on a long exposure at about 17:30. It was dark! So I thought.
The lights on the columns changed colour and I was hoping to catch the change. I suppose I could have cropped the image to show just the one column but hey you live and learn!
There is definately more than 1 lightsource in this photo... Right off the bat I can count 19. Lights in the BG, Each pole has a pink light, each pole has a light on the top, the sun rising on the right. DNMC
Not sure if this qualifies for SLS as I see sunlight, 3 florescent lights, 4 pink glows and 9 street lights in the background. The composition is a bit off as the interest in the image is the classical architecture of the building contrasting with these modern lights. The contrast is a bit soft as well. There is potential in these subjects if you visit this site again.
Rules call for "a single, artificial light source." Anything outside in daylight is using the sun - a natural light source. And there are many, many, artificial light sources in your photo. DNMC.