I've seen reviews that credit the inker with color choices, I guess somehow assuming "colored inks" were used. There are also many people out there who identify too closely with the published work. How that story is told is a combined effort by the writer and art team.
But a graphic novel is in a genre of literature that combines text with illustrations. But that's still no excuse to not do the job properly, to not do your homework, or to not know the proper terminology.
People are often doing reviews because they love the medium, or maybe for some free comics. Even an old Spider-Man comic from the s has a theme; all stories do.
Ask questions of the story. Now go forth, to love and serve good books!
Kneece has taught comic book writing at the Savannah College of Design for over two decades and his expertise and experience shows.