How can I reproduce this shot, especially the reflections in front of the person?
This shouldn't be too hard. The photo was shoot through a pane of glass. The glass is at a slight angle, reflecting the crowd.
Here is an example of how to do this:
000000 <- Crowd Glass \ Subject \ <- [} 0 You pointing your camera at the subject \ \|
This way the crowd is shown on the glass along with the subject. You'll have to experiment with angle and exposure to more accurately replicate this.
As for camera, any will do. Make sure that you aren't using a polarized filter as that could reduce the reflection. Shoot at a longer focal length (100mm or more) to make the distant crowd look larger in the reflection. Knowing this, you can also experiment with different focal lengths to see what you like the best.