Then they'd be even creepier looking for being closer to the uncanny valley. I am pretty sure that lizard-head girl here didn't lose her shoulder fighting for her country, and that her general (non-head and tail related) anatomy and proportional issues have nothing to do with her being a half-human masturbatory abomination.
The rapid movement adds just the right amount of horror to this video. I imagine this is what they did in the art department of that school in Silent Hill.