Isn Erotic Art just a fancy way of saying porn with better production values?
Firstly I have to say, I really do not care. I am not a supporter of over intellectualising any art form. But generally erotica tends to refer to sexual content that focuses on an emotional arousal, whether subtle or explicit. Another way of putting it is that the porn arena of “masturbation fodder” does not apply to erotica. But like anything else, there is a scale of how that works with whatever mixture of themes and elements and whatever techniques and styles, for whatever purposes intended by the creator(s).