I agree with Dennis's comment. It is an overused subject but this one is technically superior to most of the ones I've seen. The way you had the blue liquid lower in volume to create another triangle was brilliant. I thought this one would certainly be the blue.
Such fun glasses - I always enjoy compositions using them, especially if they are nice and clean and clear as this one is. How about that triangle of white where the liquid in the front glass cuts across the back two. Nicely set up. Top ten for me. Voted earlier.
This type of photo is sooooo overused. Even thought it is a very good image I have seen the same type of glasses filled with colored water arranged for theme after theme. I think part of the challenge is to be original therefore I couldn't give you the highest points.