I bought the 4th volume of P4GA, so I decided to scan some of the included bonuses. Here are the 3 illustration cards that were included from episode 6, episode 7, and the accomplice ending poster. I tried to keep them high quality. I’ll probably scan the included booklet later. This booklet also contained a heartwarming message from Madono Mitsuaki (Adachi’s JP VA) to the fans, so I’ll probably try to translate that too.
(Edit: The rest of the scans + translation can be found here and here.)