How was this reflection on the water droplets achieved?

[Ross the fiddler]

What method do you think this guy used to achieve the image in the water droplet (beside aiming a macro lens at the droplet)?
Note: He did not use any PP to achieve this (only to touch up small details).
I think he used a mirror above to reflect the scene (buildings) onto the water droplet & adding to the effect the image is then mirrored (upside down) in front of the droplets.
http://www.boredpanda.com/droplet-microcosmos/

This is one of his images as seen on Bored Panda. Notice what (to me) looks like a mirror above.

*Image altered to a link. Do not post photos directly on AP that you have not taken, it is a breach of copyright. You are welcome to post a simple link to photos on other sites, but must specify it is not your photo in the link - admin*
http://static.boredpanda.com/blog/wp...aae32__880.jpg

Unlike the usual nature type that I took here where the scene in the droplet is upside down (as is normal with a single lens element which it essentially is).