[Honestly, Holmes had intended to just take that photo without asking. It's for the best that Naruhodou asked about it.]

How about I trade you something for it? You may hold onto the rabbit charm in turn again. Perhaps it will serve you well, some day. [He walks over to Naruhodou, snatching the photo from his friend's hand.] As for this... I believe I'll have it framed and set up in the living room.

[Buuut he is going to fold it in such a way that Jigoku and his enormous suitcase are effectively removed from the shot, along with Naruhodou's arm. Nobody wants to look at a big, burly, bearded fellow all day long.]