Fish pictures not showing the fish’ faces or with fish turning away from the camera are usually not received very well. I believe they can be all right. It all depends on many factors. E.g. if it is obvious the fish got scared by me, it cannot help the picture. On the other hand if the fish is graciously leaving allowing me to enjoy the colour, shape and texture of its body, then it is fine. The fish is free, not restricted by my (photo) interests in any way.
The snapper on this picture (and its companions) joined my on my way to the shore. It stayed around for about 10 minutes allowing me to make pictures of both the group and the individual fish. When I was about to leave the “kelp country” it slowly turned back to the deeper water exposing the colours and the texture of its tail fin.