I ended up being the person to animate the final sequence. As Saf began on their animatic (on Procreate) of the beginning on Wednesday, and Clara presented one (also on Procreate) to us of the middle on Friday, I made one yesterday on Flipaclip.
https://youtu.be/OpMMWD_aogI
I loosely based how many e.g. fishes I needed to make from how many I drew. I think by having this draft will also be helpful in timing when we actually get to shooting on Monday.