YGP said:
Enshutsu/Storyboard/Animation Director/Key Animation: Mariko Ishikawa!

First cut was her original idea as the manga not shows Gintoki full face. The movie director Chizuru Miyawaki loved the idea and help Ishikawa with some storyboard corrections.

YGP said:
The notations of last cut are Ishikawa's. She directed/animated/ADed the fight and solo animated a long sequence after that, so safe to say she was there.
https://i.imgur.com/oHziGHP.png

silverview said:
Feels totally perfect that the final blow of the final fight is done by none other than Ishikawa herself