Fabulous Mosaic

I've walked by this spot at least half a dozen times but I'm always focused on getting to my gate for my flight. Today I had plenty of time to spare and guess I decided to look around. There were three poles each with unique mosaics. This one struck me. The use of color (or tones in this case) was astonishing. However I wasn't really sure of the best way to show it. So, above you see the full pole and here are two different close up crops.
Crop # 1
Crop # 2