Very effective -- great use of the video editing tools (especially the transparency option which enhanced the contrast of bright colors and sparkly scales).
Nothing, I think the object is tightly structured without frivolous data so as to entertain the audience without confusing them. If something absolutely *must* be changed, maybe tweak the transparency of the fish footage in the foreground which sporadically blends in really well (I lost the fish for a sec) with the darker ocean background footage. If something just absolutely must be altered...
The moving image object, compared to the other objects, presents a lot more information to the audience, so the creator must be especially attentive in cultivating which data pieces to structure her piece.
All of the media forms, in unison, preset Erika's concept in a multifaceted manner wherein audience members of different cerebral inclinations (penchant for sound theory versus vernacular analysis, for example) can arrive to Erika's overall concept by first embracing the Object which gels with them the most, then consult the other Objects to add dept to their initial understanding of the overall concept.
Solid video editing! The opening and closing sequences were seamless, and the use of transparency enhanced the aesthetics of the video/story, which are paramount to the fish story to begin with!