As a fan of the comic book medium ... it sucks when the art is jarring and takes away from the overall story. This is what I found with Max Brook's graphic novel (I forget the artist). I found myself, often, saying I wish Brooks just wrote this as a prose work, a companion to the phenomical World War Z. It's worth a look, because there's some creepy vignettes ... especially where the Dutch come across the slave ship, but only if you've read WWZ first.