Mattyo said:
Possible Nakamura corrections on this scene
https://twitter.com/181ino/status/1389257474138542086?s=20

from that tweet

原画担当者が誰だったかは忘れてしまいましたが、いくつかの原画は私も手伝いました。

Marketani said:
from that tweet

Wasn't sure if he was speaking about that scene in particular (from the looks of it he doesn't seem to have contributed to the first half of the movie) but I guess a presume doesn't hurt

Ahh I didnt even notice there was other linked posts at first. On desktop it only shows the tweet with the text

"My guess is that the entire opening scene of the movie with Palme climbing the tree was the same person. But who? That is the question."

and then shows his reply linked to that. So I think that was the one he was replying to .Also that vid has cuts that look like him anyways, which confused me at first because I didnt see any cuts here that looked like him