I’d have never seen this fish except that it was on the move. The human eye is accustomed to see threat and anything moving is noticed first. I cropped to get this close up. You lose detail as you crop more. But here it’s not possible to salvage the image unless you crop. Otherwise I have a whole lot of homogenous boring sand in the image. With macro focus I could have tried for the eyes. That would have been a shot. But I did not have the time and could not get in close. My BCD kept pulling me toward the surface.