It's all about angles and light. I would have move to your left to get more a slightly more frontal view. The tail appears to be trailing toward you.
Second, you are shooting somewhat downward. Move the camera position down with a straighter view of the fish.
Strobe position. The front of lower part of the head is fairly dark on my crappy monitor at work, plus there is a harsh shadown right under the fish. If the strobe were positioned on the left, just slightly above the film plane and fairly tight to the camera, the fish itself would block most of the shadow. The viewer's eyes will immediately go to the face of the fish, or at least should. This is why it is better to have the shadow trailing to the other side.
Second, you are shooting somewhat downward. Move the camera position down with a straighter view of the fish.
Strobe position. The front of lower part of the head is fairly dark on my crappy monitor at work, plus there is a harsh shadown right under the fish. If the strobe were positioned on the left, just slightly above the film plane and fairly tight to the camera, the fish itself would block most of the shadow. The viewer's eyes will immediately go to the face of the fish, or at least should. This is why it is better to have the shadow trailing to the other side.