I like the idea. Few of things worth noting though: the backdrop creases are too visible, so maybe a shallower dof would have lessened that distraction; the pattern on the glass, although really cool, takes my attention away from the beer, maybe just a plain clear glass that's been chilling in the freezer for a few minutes would have worked better, and lastly; a little more head on the beer! :)
Its a very good shot; I like the textures and the play of cool green can and cool blue background. However, points off for pouring a lager into a pilsner glass :O