Better ending?
It would be a better ending if the monster that everyone fears was never Dracula but one of his henchmen who was dedicated to killing people from the crew to bring as food to the real Dracula.
At the end of the story they could have killed the "fake Dracula", the ship crashes against the coast and one of the several boxes contained the real Dracula, who opens the box to attack the locals who were checking the wreckage of the ship.