Fortunately, when I was here I took lots of reference shots around the fountain. One of the main ones I am using for inspiration was cut off at the shield on the left. Since I had multiple photos, I could look at them and work out the details which were missing.
If I find a scene at all interesting (and few are not), I'll take as many reference shots as time allows. Then, I'll set the camera aside and soak it in with my eyes, ears, nose, and hands - memorizing the essence of the place. And maybe that is the most important reference of them all.