Good movie, average music
The style was great! I loved the broken looks of the fishes, and the paper cut-out appearance of the "bad" fishes eyes. I think the interesting style is what kept me watching.
My only real complaint is the music, because it didn't seem to fit in the least. It was an average little track, but it didn't at all add to the piece of capture its overall tone. I think you needed something a little faster, or more "fun" sounding. Hopefully that makes sense.
It might have even been worth it in this piece to ask someone to make a custom soundtrack. When the bad fish come along, or when the fish is fighting with the lure, there are pacing and mood changes that would have been much more exciting with the right musical accompanyment.
A good flash, and rather enjoyable.
Just make sure you try out lots of different songs from different genres. I know how hard it is to find a fitting track, but it is worth it.