This looks like a simple picture but took me hours to set up. I had thought about combining two seperate images but that seemed like cheating.
The difficulty is getting liquid to flow from the bottle and look real. What I found was that because the glass (and everything else, except me) is upside down the bottle has to tilt upwards and it is difficult to avoid the water flowing from the bottle without it being obvious that it is upside down.
In order to control the flow I broke the bottom off of a whisky bottle (empty of course!) and stuck the jagged end into a plastic vitamin tub into which I had inserted some tubing. This was then gaffer taped to a 'stick in a can' (literally a piece of wood inside a can which is filled with cement to provide a flexible support on a solid base) The bottle has to be angled slightly upwards or it will look odd when the image is rotated.
The glass is supended on invisible thread (see set up pic) although this did not matter in the end and I could have saved at least an hour trying to figure out how to do it!
I used my DIY still life table which is a sheet of white perspex bent through about 75 degrees and supported on trestles and hooks.
Black cards either side of the glass manage reflections. Two flashes were used - Youngnuo 460 at 1/2 power behind and Canon 540 at 1/4 power beneath perspex.
Canon 50D with efs 60mm macro lens at f10. Flashes tripped by radio triggers.