Big Daddy is supposed to be taking a bite out of a submarine, but it honestly doesn't look like a submarine!  It looks like it's made out of rubber!  But that's not all.  Those two pics above?  They're the last frames from each version.  So, Big Daddy comes in and bites down on the submarine, then it instantly cuts back to Sevarius.  In the retake, Big Daddy takes a bite out of the submarine, air comes rushing out, and then it cuts back to Sevarius. 

You can tell they reused the Big Daddy cel, but changed the submarine (making it look solid), added the bite marks, and painted in some air rushing out. 

It looks much better now, doesn't it?