As the sun set over the river the clouds were hit with a burst of gold in contrast with the fading blue of the evening sky. It lasted only a few minutes so you only get a brief window to frame your photograph. Some people might have tried to rush to a landmark to incorporate into the skyline but that is such a risk and with the color and clouds so vibrant it really wasn't necessary.
Fuji X-T1, Fujinon 56/f1.2R
56mm, f4, 1/1900 sec @ 200 ISO