About episode 900, the episode was overall, pretty good.
Although the series director storyboarded this episode, this was actually someone's episode directorial debut, just generally, and they did a pretty solid job. The humour I felt was really well done, and they did a good job with making the episode visually interesting aesthetically, even in scenes that were more poorly paced(in the second half). The background art has also been a joy to look at generally thus far.
Animation wise, there was a surprisingly good amount of character acting animation in the episode that is a bit uncharacteristic of One Piece. The first half in particular had a lot of really nice stuff in that sense. The second half less so, although Yoichi Mitsui handled a nice bit of action, I really didn't care for some of the repeated angles they kept on cycling through with Zoro blocking the arrows, so I felt that dragged the episode down a bit.
Overall, still, a pretty damn solid episode.
Next episode looks interesting as well, with Masahiro Kitazaki(historically one of the stronger animation supervisors) making his debut as an animation supervisor on Wano, and Satoshi Ito taking the directorial reins again. Should be fun.
EDIT:Also, BTW, the animation supervisor for this episode, Kenji Yokoyama, has been an animation supervisor on One Piece since episode 2. Its nice to see someone who has stuck with the show basically since its beginning handling land mark episodes like this along side some "fresh blood".
