This website contains age-restricted materials including nudity and explicit depictions of sexual activity.
By entering, you affirm that you are at least 18 years of age or the age of majority in the jurisdiction you are accessing the website from and you consent to viewing sexually explicit content.
My counter argument: The Picture of Dorian Gray
It seems the word picture at the very least used to be used for paintings as well, so it’s more that it’s just an uncommon usage. Maybe the guy is a time traveler.