What do you like to see as a reader? If you're a creator, what kind of extras do you like to share with your readers? 
I'm preparing to print a copy of the first chapter of my comic for myself, and I'm going through additional materials I have to decide what to add as extras.
One of those is the map of the world my comic takes place in, because the characters traveling is a big part of the story. I also have a short text for one of the locations mentioned in the comic that I want to add to both the printed version and to the webcomic.
Sadly, I don't have much sketches for the first chapter because I was making it on the go (perks of a 9-5
). I have a weapons design one, and some costumes that are too messy.

But I'm taking more time with chapter 2 so I will have nicer sketches and character designs for it.