As a photograph, I find the picture a bit blah (too contrived). The only thing going for it is the color and the lines. I Actually put my self over the handrail a bit to get this more centered. Wish that speaker was not at the top for a better symmetry of lights. Actually, nothing more than a "snapshot".
Underexposed by stop and a half.
Shot at ISO 800, 5.6 1/60.
Taken around 3:30pm PST.
White Balance set to Cloudy.
Post Work:
Changed White Balance slightly.
Slight Noise Reduction.
Messed with levels.
Messed with levels again
Slight color boot.
Spot touched the ceiling changed from drab gray/brown to purplish color (hue not that far off)
Further noise reduction applied to ceiling.
Reduced size.
Slight unsharp mask
20 minutes of work in Capture NX.
Guessing 5.2, though I probably will get some DQ since there isn't a subject per say so difficult to put in the middle...
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Good color and lines. A brighter image would have gotten you more mileage with the voters as well as a more centered alignment, IMO. Although the latter may change the dynamic too much. Looks fine as is but just noting what might hold this back some. Good luck.