Kind of tempted to tag Ootsuka since he mentioned working on a cut with a mech in it but I'll keep my urges in check for now.

Ito did 0:04-0:06

I thought that the last two cuts were a Giants animator for sure since Masayuki used to love doing that zooming out of the eyes thing a ton back in the 80s and one of his colleagues might have picked it up from him but doggonit it's Atsuko Ishida helping out her old friend Keiji Gotoh on his new show.

So now it's:
C1-C3: ??
C4-C5: Naoyuki Konno (confirmed by Habara)
C6: Koji Ito (almost definitely)
C7-C8: Atsuko Ishida

See you all in another month when I've figured out who drew the first three cuts.