First off, Great video :D. I have a couple things id like to touch on though
1. Speed control. Ok so you have the fast pace down but its monotone. Where is the variation?
2. Body control. This also goes into the looking down thing others have touched on. Make sure you are aware of yourself, where your body is, what its doing, and how its going to look in relation to your liquid. Also when moving are you being clumsy, or is it natural movement with the dance.
3. On purpose movement. This partly plays into the above two but its something others ive talked to have stuggled with in the past. Make sure your movements in and out of moves, completion of moves, ect.. are thought out and on purpose. This will help with how clean things look, and help the illusion.