MCsaba, I think I'm getting thirsty! ;^) My first impression was that this one is overly busy despite the simple elements, but with further looking I enjoy the effect on the reflections created by the water on the mirror. Maybe a less detailed background reflection would have helped a little with the impact. However, your image creates the kind of atmosphere that supports the idea of serving an ice cold beer, which is good. Nicely composed and the contrast of the coloured bottle top with the plain opener is right. It's been interesting to sit and look at this one for a little while.
John