It's kind of wierd, but I like the smell of fish...
I think Lytschi is on to something. To me, the ice looks like a wrapper, similar to the ones that come with gyros. One thing you could try is increase the ice cube sizes to conform with the shape of the templates given.
I think it looks very nice espacially the texture however I think the ice and the jaw look a little strange you still can add 3 colors maybe a lemon slice or something else to make clear it's a fish on ice.
Like in this picture here : previews.123rf.com/images/alexraths/alexraths1202/alexraths120200020/12351127-Frische-Makrelen-Fisch-Scomber-scrombrus-auf-Eis-Lizenzfreie-Bilder.jpg