Above you can see Noah with animals walking up to it, Zunisha is in the back with people walking on top of it, and then Arc Maxim is above shooting lightning bolts down
let’s remember that Zunisha is even called a “ship” in the manga
Noah requires Poseidon to Control the sea kings to move it… Zunisha came to Wano when Pluton was going to be unleashed… And Maxim is shooting down Lightning bolts like Uranus