Punk Hazard is one of my favorite arcs, not only because of the fact that from this arc, Oda starts to line up all the successive arcs: Dressrosa, Zou, Whoke Cake, Wano and even EGG HEAD.
Finally, a dreaded pirate landlord and a katana maniac enter the scene, the points I liked the most about their interaction in PH:
° From the first moment Zoro hears the screams of the marines, upon hearing his name, he realizes who is the person that Law hurt, and obviously he cares-otherwise Oda wouldn't take care to reflect her face in the panel-and that "What has she done", was an OWWWWWW, He's watching her.
° The moment of their meeting, was like giving lucidity to the great abyss of their belonging, one is a marine and the other a pirate, but the thing is that Zoro, realizes that Tashigi moved up in rank >.<, and their nicknames are still there <3. I DON'T BELIEVE EVEN ONCE THEY BOTH HAVE BEEN NAMED BY THEIR NAMES.
° Tashigi's desperation at seeing the sacrifice of the G-5, Zoro realizing that she has become a Loyal captain, which her subordinates are capable of sacrificing themselves for her, -something Zoro himself tried to do once to save Luffy in TB-.
° Tashigi wanting to cooperate with Zoro, despite not knowing exactly why he acted that way in Loguetown.
° Their interactions in the fight against Monet is one of my favorites, Zoro and Tashigi, going from being a dog and cat fighting over who gets the first punch, -trope of husband and wife fighting in a married couples feud-.
° Zoro being a weak man before the traits of a lovely woman, and a Zoro worried about the way the fight is escalating.
° Zoro wanted to finish with Monet once and for all after witnessing her attack against Tashigi, and he was upset that she hurt her, so Monet herself admits that she left which made him want to kill her.
° Zoro is not a man without feelings, he knew that that blow was Tashigi's, he simply wanted to give them both the satisfaction of showing her that he can cut anything, including women, watch what he says to Monet: "There are things that I really don't like to cut", in Tashigi's presence. For me, Tashigi enters in those things that Roronoa Zoro refuses to cut.
° Zoro trying to keep the composure of the vile pirate, giving her a new nickname "Marine Woman" xD
° A super worried Zoro to see Tashigi locked in the Snowstorm (I wonder when we will see this expression on Tashigi, worried about Zoro).
° Oda putting the same flowers next to Zoro on the cover of this chapter, same flowers same color, that Tashigi has. And in the anime it is the same.
° One thing I've learned from the romantic tropes of anime-manga, is that a man in love will always call the girl he loves and likes Molesta. Live example Vegeta with Bulma, Sasuke with Sakura, Kou with Tanaka.
Zoro: "you're annoying" <3
° Well I like the rough and maniacal Zoro for the new Katana doctrines, and a Tashigi being invaded by a sexy smoker.
THIS PANEL IS MY FAVORITE… Oda didn't have to make them so close and give him a big space just to show an "irritated" Zoro, taken to an embarrassed girl. :)
° A sign that Sanji knows that Zoro is not a vile pirate, and this reminds me of the Loguetown Novel, where Sanji, states that he was jealous that a lazy brute like Zoro had a strong connection with a pretty girl - Tashigi - and here he states that Tashigi will be in good hands and telling Tashigi's sudbordinates that the man has a soft side. In conclusion, Sanji can understand a little bit Zoro's attitude towards Tashigi.