Hah, it's fantastic, truly strange choice of theme and impressive modelling and scene dressing :- ).
Can I offer two small suggestions ? One is I think the oranges let down the realism of piece. They lack light scattering, some volume refraction. It makes them appear painted.
I would try to push the light contrast a bit further, to make the fish pop even more. Currently, I can feel where the light is coming from due to reflection, but not from shadows.
Excellent&funky job
