I enjoyed the first Woman in Black. It wasn't shockingly original, but seemed to combine the horror staples in a suitably creepy way.
So, for the sequel, it seems reasonable to show us the same creepy dolls and rocking chair moving on its own again.
But using the Diddy Laugh seems to remove the scares for me. This trailer makes a real feature of it. Twice! The first one is at 1 minute and 17 seconds