There is something post apocalyptic about his image. The dead rubble, the grey gloom, the line of steel posts running off into nothing and a lone cowfish missing most of her tail.
This poor girl is a female 'Shaw's Cowfish',
Arcana aurita, and when I cam across her she was tucked in behind the steel post swimming into the current.
I can only speculate the reason for her battered body. I'd like to imagine some heroic escape from a large predator but probably she was harassed by triggerfish who sneak up from behind and take out little chunks of flesh.
Regardless I see here here as a lonely survivor in a bleak landscape.
Photo: Robert Rath, ‘Day 702, Lonely Survivor', 1/320 f/8 ISO100 15mm