I haven't read the novel so I do not know about it, but I have read the Manga and watched the Anime.
During the bus hijack, Aria used a helicopter in the Manga but she used a car instead in the Anime. In my opinion, the helicopter would be much cooler than the car.
I have to say that Reki looks freaking awesome in the Anime compared to the Manga.Read more >
I edited an artwork provided by the official site of Hidan no Aria.
First picture: I added rain.
Second picture: I added pink glow.
They are not some amazing edits. They are just quick and small edits.Read more >