You did get the most out of the single light!!! It's just that a second light would improve the shot. I pulled it into Lightroom...I thought "maybe" I could pump some fill light into the wine, but the wine's darker areas are not really recoverable to the level of detail that I am craving to see. But then again...it's still a nice shot. You got a pretty good splash shape within the glass, and the motion looks good. This kind of shot is something a lot of people have tried, and I've seen many shots of this type done much worse.
What I think is really good is the delicate black edges on the rim and stem of the glass--really nicely delineating the perimeter areas and shapes! Those DARK lines really,really help convey a sense of shape, and dimensionality. Also, I think if this were reduced in size, to say Samsung Galaxy Note size, or iPad or iPhone size, it'd look really awesome. This photo illustration conveys a lot of the gestalt of wine-pouring.