A few improvements and additions. I obviously added the "champagne" into the scene. It was a little trickier than I was expecting so it took a while. I ended up trying a number of different materials in mitsuba, but eventually used a Hanrahan-Krueger BSDF. The bucket also looks better, and the bottle is now green. Oh and I changed the chairs.
I now need to render out a bunch of frames to animate the bubbles.
