Ahhh, the frosty glass. :D Making me thirsty! I like the way the light works in this image with the glow coming across the coins on the table. Nice job on composing this. Many would be tempted to include all of the money on the table but I think it works better as you've done it. Good choice of aperture to slightly blur out the background. Best of luck to you in the challenge.
This isn't a bad ad shot. The lighting could be a little moodier, and I think you could have pulled that off in post-processing by playing with levels/curves. One thing about advertisements is they generally show a brand of some sort which you are being convinced to buy. That seems to be missing here. All in all not bad. Good luck.
I like the set up and the idea (especially the defining DOF). A different color bar that would lend to more contrast would serve better IMO. (no pun intended)Also albiet small detail is that Beer companies like to have a nice head of foam on their beers as it infers freshness. Still very nice overall.
This is well lit, and the atmosphere works well, but I don' like the straight on angle. Perhaps something from above would have worked better. But good idea. :-)