Mhh, rly interesting chapter with a lot of designs and stuff, so mostly i comment now about how i think the designs we`re presented are looking in my eyes:
I rly like the coral-shell design of Ryuuguu.
With all those watertubes it has like little highways going trough it, which rly makes it a unique place to live in and on the top of the corals rly peaceful as it seems.
The design of the three Neptune brothers aren`t rly impressing to me (2nd and 3rd son are looking more than weird with their fishman-style) but at least finally some mermaids and the Neptune father could become rly important in this arc seeing those guys being introduced as another(sure not the most important power\group on this island…maybe they will later team up with the SHs).
The Royal Gondula looked just freaking awesome..i just hoped Luffy will take a ride with it later , and he fucking does :)
Ammo-knights...haha i rly laughed the first time i saw them.:happy:
They sure look a bit spacy.
The "no blood transferring" thing sure is just another facette of how fishman stand to humans which is now added to the picture and a little piece of Fisher Tigers history which i may see as hint that we get more of it(maybe flashback?)
Luffy giving in the end his blood to a fishman\mermaid could also be a case in the end of this arc, to show that he sees them as equals.
That Hammond and his gang are defeated by Luffy that easy...mhh i hope they can be at least for someone on the crew a real battle, because i somehow like those guys.