It does have an especially hideous appearance and animation decades old. Trying to jump from the cleanest most vibrant stuff out of Japan to this is like a time warp, speaking on animation and design complexity.
I want to say "it's a bad way to go" but I guess that comes down to the force of drainage and do you have Magneto like control of the stuff, or does it just leak out and they slip into ecstatic oblivion.
Now imagining tremere blood magic taken in a different direction.
Ginger Snaps is good stuff. Very entertaining, charged with the energy of adolescent anxiety to an extent very few films can match.
Also you might want to check out Marebito. Then move on to other exceptional Jap and Korean horror (avoid the ring, go deeper, stranger).