I just had to take as many shots I could while having all the reflections from the puddles. And even with quite a huge amount of people walking around, I managed to get this without any of them in the shot. One has to like long night exposures :)
This is a HDR from 3 exposures, created in Oloneo Photoengine, finished in Photoshop.
Technique: Oloneo Photoengine, Number of exposures: 3, Camera Model: Sony a7R + Metabones MkIII Adapter, Lens: Canon 16-35mm F2.8, Focal length: 16mm, Aperture: 11, Middle exposure time: 15.0s, ISO: 100, Tripod used: yes, Location: 48.856301, 2.297177
