Why did the parademons look different
in Batman's nightmare vision?
I believe this is how they look in both versions of the movies: https://www.youtube.com/watch?v=wtufzfwL97w.
But in Batman's nightmare/vision, they look like this: https://www.youtube.com/watch?v=cPZwT3lbJDU. They look waaaay cooler here btw.