Funny experiement indeed!
Im courious to hear about the lightnings? Did you use some kind of speedlight, or was it all natural light - in that case; very lit or how?
If this is your first attempts, its very well done IMO. I like 'em!
Try mixing the water with some fruit color or fill it with....well...lets say; ketchup? For example!
That could make some awesome results. (Ofcourse there's alot of cleaning afterwards, but what the hell?