smart :D
this was very clever in both story and execution. I liked how the fish were sort of like paper cut outs that moved to make the fish form. lacking the completeness was a good thing for the animation, it made it very original
there really isnt much bad at all to say about this animation, so I'll just identify a couple instances where the animation could be polished
when the first big fish was reeled in, it would have been better to see the murky form of the underside of a boat, to the side, and after he broke surface, a lighter shape representing him above water
the dead red fish's severed head's blood was a little mah looking. maybe a much longer (vertically) cloud of blood, with a longer fade out
hope this helped :D