A camera on a fish means footage nobody has ever seen, and the only way to see it is to click. The arrow makes sure you spot the GoPro, the shocked face says the payoff delivers, and the title spells out the stunt plainly.
How the packaging works
Title
It states the stunt in plain words so the promise is instant.
Thumbnail
It shows the real rig on the fish, with a face promising the payoff.
Remix this
If your video captures a view people never get, sell the access rather than the result. Show the setup in the image and save every frame of the payoff for the video.
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