Cover Art - 'A Lovely Singing Voice' - Fish development

Been working on the tropical fish. The girl is supposed to be looking through a fish tank - not that you would have been able to know that up to this point ... though maybe the rocks gave a small clue :

The bottom one is mostly ( if not totally ) done. The orange / white one has just been started. I'm hoping that they don't make the image look too busy - but I guess the beauty of photoshop is that I can just turn the fish 'off', and rearrange their positions to mt heart's content !