The mask and spray can say street artist before you read a word, and the wall behind raises the pressure. But the image only restates the title, an artist at a wall. Nothing shows this is the famous one, so the biggest claim goes unproven.
How the packaging works
Title
The title supplies the access claim, the most famous wall in New York.
Thumbnail
The thumbnail shows the artist geared up at a graffiti wall, restating the title.
Remix this
When rare access is your hook, make the venue itself recognisable in the frame, not just yourself doing the activity. If a stranger cannot tell the place is special, the access claim rests on the title alone.