Nice color coming from the ale in the glass, the killer reflection on the ale bottle lable hurts here though. Maybe try moving the light to another angle, using a polarizer, or even softening the light with some difuusion material would be some tips I would try. I do wanna a beer right now though..lol ;)
the lighting is very harsh on this. perhaps moving the light a bit further away, and using a reflector to fil in the light on the bottle would help? Or did you use a flash? The composition is good, and seems pretty clear and sharp. Just the lighting would improve this.
Okay, if I drank beer, which I don't, I would think of this as a very enticing commercial shot, so nice job. A bit too much bright blur on the label and that funky flame-like artifact at the top is, well, funky, but the way the light hits the glass is great.