Compositionally, I love the crop of this. The offset angle adds interest and dynamics to the shot and draws the viewer in. It is also infinitely more interesting than just a straight shot of a wine glass with a bubbly beverage in it.
Technically, this shot screams for sharp focus throughout. At first glance, I thought the bubbles were also out of focus, but upon closer looks, it may just be a reflection of sorts that keeps them from looking "clear." In a shot like this, where there is simply light and dark, the eye is going to be drawn to the light area, and I think that is why it needs a stronger focus on the stem and bottom of the glass. If you wanted more emphasis on the beverage, perhaps a bit more space around the top would help to pull the eyes back up.
Overall, I think this is an interesting image. I also think playing with the colors and hues to make this a straight black and white image (it seems to have a slight blue cast to it right now) would also be interesting.