Nami is reading the story Nolan the Liar to Zoro while he's in a coma.
It's unspoken, but Zeff forgives Luffy's debt for helping to save everyone.
Garp is amused that Mihawk let Luffy go but had to give the impression he was upset about it.
Arlong is bigger jerk in this version than the original. He threatens to kill and eat everyone in Baratei. In the original, he may have been a Fishman supremacist, but he was at least cordial and not a brute unless provoked, using fear foremost. Here, he has Hordy Jones irrational racism.
Nami admits to Zoro that she wanted friends but couldn't allow herself that luxury, unlike the original where Nami refused to feel companionship so that she wouldn't have weaknesses for Arlong to exploit.