The gao is strong with this one.
Generally I try to keep liquids even more translucent, smaller and less uniform because the thicker they get the less they feel like liquid and the more they feel like an object. Of course it all depends a lot on art style though!
Another thing is that water tends to reflect the ambient lighting of a scene and the surface that it sits on, so I would add pretty intense rim lights to any surface on liquid especially tears and stuff to make it pop out more. Drool I don't think behaves this way since it actually is a lot thicker. Lastly, getting the physics of liquids on surfaces is hard but I think you did a decent job here, keep it up!