I voted After. I've never been a fan of the incomplete, gaping opening with no lower jaw look. Upon quick glance, it makes me think you hit something and knocked it off the car. Looking at it up close and personal, I have no preference, but on the road at normal road distances, it always looks off to me.
That said, I prefer having the fangs visible, so I'd go with option 3.
In the end, do whatever you like most.