One is immediately taken by the geometry of the glassed front building. But as one stares, the reflections take over and attention is given to them. I particularly liked the light post as it is of both lines (like the main subject of focus) and cirles, thus making it unique to the rest of the composition. The sunlight is another powerful tool in this picture.
Interesting in that Your image is Split into Two... with Clarity and Translucency on the Left... and the Aesthetically Pleasing Reflections on the Right... Nicely wrought...
Tom