Fins drawn along the bending body look fine on a shark.
A humpback stays curled all the way round its bubble net, and its flippers are a third of its length. same method, the outer one balloons (koi too).
So fins are pinned stiff at the root now. porting was mostly re-checking what quietly worked.
Couldn't stop poking at this. the shark is literally a wiggly spine, and the letters just work out what they're sitting on.
So I swapped in koi and gave them a pond with wind and ripples. tap the water and they come eat.