There's not much information to go on just from the title 'yummy sandifer graphic novel'. However, if I were to guess, 'yummy' might suggest something appealing or enjoyable. It could be that Sandifer is a character in a story that has elements that are really engaging, like a story set in a fantastical place with interesting characters and plotlines that are presented in a graphic novel format.
Well, one possible theme could be identity. If 'Yummy' was a nickname, it might be about how that name shaped his identity. Another theme could be family, perhaps his family played a role in his story.
Since I don't know the exact story, I can't say for sure. But usually in a ghost story, key elements could include a haunted location related to Billy Sandifer.
It could be a drama. If it's based on the real - life events of Yummy Sandifer, there might be elements of conflict, struggle, and personal growth that are typical of drama genre.
I'm not very familiar with a specific 'Robert Yummy Sandifer Graphic Novel'. It could be a relatively unknown or niche work. It might be about a character named Robert Yummy Sandifer, and perhaps the graphic novel format is used to tell his story in a visual and engaging way, with illustrations and panels to bring the narrative to life.
I'm not sure where you can find the 'yummy sandifer graphic novel'. You could try checking at your local comic book stores. They often have a wide variety of graphic novels.
If we consider the general 'Elizabeth story', Elizabeth is likely the central figure. Her significance could be that she drives the plot forward. For example, if it's a story of her journey, her decisions and actions would be what the story is built around.