Much of the thematic additions of Halloween at Disneyland had to do with The Nightmare before Christmas, with music from the movie, as well as many appearances of Jack Skellington and Sally. If I had known that, it would have been good to go as these characters. Maybe next time.
The Haunted Mansion was decked out with lots of Jack-and-Sally stuff, both outside and in. This is scrapped with Jen Maddocks Haunted, with additions from Maya de Groot's All Hallows Eve.