I didn't do a photo shoot of the progress of this costume. Here's how I made Jack Skellington's costume.
I bought the skeleton hands and I made the bow tie. Here's a link for the bow tie including the pattern to cut it out here
Sally costume was time consuming with sewing fabric quarters together. It is a little big here because my Sally costume had to be able to accommodate layering. It's cold here in Maine. Anyway, the pattern I used was Simplicity 3833
Here are the costumes.
Simplicity now sells a pattern to make Jack Skellington's outfit.
It is Simplicity 1039