I assumed they used a random stock photo that had a convenient pose to add the shirt onto, that happened to have a tattoo.
Of course, I also figured using a photo with too much ink would 1) distract from the merchandise and 2) make the stock photo model too recognizable. (Oh, they clearly used Getty #8675309, “Fat White Guy With Mediocre Barbed Wire Tattoo”), but plenty of the pics are identifiable enough to use for a police report.
Level 5 Gyatttttt
I have no idea, I’m just repeating shit