So the above example is a bit of a special case since it appeals to me specifically because of my love for plants and automation.

But in a slightly less specific niche, you’ve pretty much nailed it. Someone sending something personal that they’re passionate about is hot for a bunch of obvious reasons (passion, sexy naked people thinking about the composition of their photos) and someone sending something creative would be pretty unique in my experience, and it’d be really fun to think they put that much effort into showing off.