You nailed this one. Exposure, composition, square crop, and subject are all A+.
The only nit that I could pick would be to do something with the little bright spot on top of the girl on the left side.
Excellent capture. I love this cool fountain. The folks that designed this one are the same folks that designed the Bellagio fountains in LV and the fountains for Walt Disney World.
It always seems that something cool and interesting is going on there and you found a great story.