The translation question: does the translator's name belong on the cover?
My experience reading graphic novels alongside prose fiction has been one of persistent calibration. The two forms have almost no vocabulary in common. A well-constructed page of comics is doing something completely different from a well-constructed page of prose, and judgment about one doesn't transfer to the other.
The graphic novel I use to explain what the form can do is Chris Ware's Building Stories. It's a box that contains fourteen different printed objects — newspapers, pamphlets, a board game, a hardcover — that can be read in any order and that tell a nonlinear story about a woman and an apartment building. The form is the argument about how we assemble a life from fragments.
Watchmen is the obvious recommendation but Building Stories made me understand what graphic narrative can do that Watchmen hadn't.