Fair use doesn’t apply to a reel. It only applies in situations where a party is informing the public (read news or press) not private marketing or promotional materials (read reels). So you’re in no way covered by fair use. That’s said, what’s the worst that could happen? A client asks you to take out their shot? You lose a client over it? If you’re willing to risk it, go for it. Or do them the courtesy of asking for permission. In all likelihood you’ll never hear a peep about the matter, if you do, just take that shot out.
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