How do you manage to not suffer immediate death by going underwater ?
For my personal taste, the Zombie is moving way to swiftly, as if he was walking through thin air.
If he was a Skeleton, ... maybe that would (almost) be ok, but for a bloated lump of flesh.... I don't think so - as far as being realistic is the Goal, which, regarding Zombies of this type, is a contradiction in itself.
Lives of great men all remind us we may make our lives sublime
