The rendering is nice as well, just the one thing in there is the bubbles look maybe a little too regular or repeated? I guess that may not be very easy to tweak though.
Well... the fall was made with realflow, but I made a test doing an offset of the fall curve, close and extrude it, then exported to Silo (.obj) and painted displacement with same result.as the realflow one.
Here is the last model of the tank.
