I finally finished the animation for this scene. I also increased the depth of field, as you may have noticed. I think it looks pretty good, but it stills kind of looks like the glasses are floating. Overall I think this was a good first real foray into mitsuba, and I think that it also shows off the bubble simulator results pretty well.
Oh - and if you don't want to wait for like a year for your composite to render, don't use .exr images in after effects.
I would also suggest to watch in HD on vimeo.