The outside plants are just one bamboo-like V-Ray proxy that I scattered with the Multiscatter plugin from rendering.ru. Here are the settings I used (Fig.10).
Next I set the lightning. I used the V-Ray internal Sun/Sky system, which works just great for this kind of image. Also I used a V-Ray dome light to get the light that I wanted. So, in fact, I just used the V-Ray Sky for the reflections in my scene, as seen in the settings in (Fig.11 - 12).
The render settings are nothing special. I used IR map and light cache for the GI, and the adaptive DMC for the image sampler (Fig.13).