Maybe I just need more material that only an actual book can give you but I just have not found myself liking graphic novels to date. The Outlander graphic novel was a total disappointment and the Vampire Academy graphic novel is a disappointment as well, although I expected less from it.
The problems as I saw them:
-odd artwork and layout choices
-is it just me or do Rose and Dimitri look like they could be brother and sister in these drawings?
-the plot is lost, too much is left out to account for the format
-the random "text" of explanation was annoying and distracting to the already distracting graphic novel
-you would be utterly lost if you had not read the book(s) and the connection between characters is not clear
Skip the graphic novel and stick to the books, at least then you can create the characters in your own head and have a plot to boot.