"To My Dear Loving Husband," the main reason Bradstreet uses inversion is to complete the rhyme scheme. Anne Bradstreet uses inversion in "To My Dear and Loving Husband" in order to emphasize her emotions for her husband.
It doesn't contain any punctuation, first of all, and second, it doesn't have a subject. To be a sentence, it must contain a subject. It also must contain one main clause.
