Looks good.
Beer seems metallic, it should be a bit transparent, and/or cloudy, might be the lighting. The glass is about to fall, if not intended maybe balance it.
I really like it! The fluid looks great and the condensation droplets and the water-trails are spot on!
It is great to see that you actually bothered to detail the model even on the inside (The bottom part of the glass).
The DoF looks great, but it did take me a while to understand the environment and at first I just though the glass was hovering in mid air with a very blurry background behind it. The DoF might be a bit too much then.
Another tiny detail is the low resolution bump-map used for the table. I think that is the only thing that ruins the photorealisme in the render. Great job!