I would not have guessed it was light leaks from homes either. Maybe add a couple streets under the letters and turn all the houses on a side to face the same way and they should be lined up in a grid. I like the pic though, looks very cool. Maybe change the green light to purple to rep the LED growers.
I got it, yes, its cool, maybe you will need to adjust for those lacking in imagination, specially since so many here use big bright lights and worry constantly about leakage
Reminds me of the day i left a door open, came back late in the evening to see an bright orange glow emanating from my place. Thankfully this was many moons ago, but i can tell you it gave me cold sweats for quite a few weeks wondering if there would be consequences from my stupid oversight.