Rightmost one looks like the outfit from post #6358968, but I can't quite fnd the actual source right now.
The manga next to the tower PC is volume 1 with a variation of post #5890906 on the cover, based on where in the book they are either the green or the pink bookmarks are on the page where Ai gets stabbed.
I think the original source is the anime, episode 4 around 13:30-40, as B-roll when Kaburagi is describing his past interaction with Ai. The corresponding manga scene in chapter 18 doesn't have a frame like that.
I think the original source is the anime, episode 4 around 13:30-40, as B-roll when Kaburagi is describing his past interaction with Ai. The corresponding manga scene in chapter 18 doesn't have a frame like that.