Twitter will remove nonconsensual nude images within hours as long as that media is reported for having violated someone’s copyright. If the same content is reported just as nonconsensual intimate media, Twitter will not remove it within weeks, and might never remove it at all, according to a pre-print study from researchers at the University of Michigan.
There’s no copyright involved in taking a picture of someone, or having a picture of someone… Your tourist pictures are fine. If you publicize then or try selling them, that might be an issue, but making it inconvenient for people to make money off of non-permission photos isn’t really concerning to most people.