I just got around the Circus arc. Hmmm. Pretty meh. Aquarium arc is still the best one, by far, in terms of basically everything. Fights have never been Horikoshi's forte, even though he's getting better at it on Hero Academia, but the Circus ones are pretty bad. Specially snake girl vs dog girl. Does that even count as a fight? Chapter title seems to indicate so, but I don't think it should.
Ending was ok-ish, but the emotional stakes never got to me. Agree on Hana being the best character in terms of her arc being a complete one, and pretty enjoyable at it.
I still think this was a nice series, and I wouldn't have minded for it to continue one last arc, with the Curse Master or wathever. It seems Horikoshi is putting as much Oumagadoki stuff as he can on Hero Academia, so, who knows? Crossover chance?
Not bad, but he has definitely improved as an author. Bulge was still terrible, though.
And gangster orca is still his best design ever.