What is the author's style in Beware of Ruins by A. D. Hope?

"Beware of Ruins" consists of four six-lined stanzas, each with a rhyme scheme of abcabc. The meter is a fairly regular iambic pentameter except for the fourth line in every stanza which is a ragged iambic tetrameter. This is a conversational meter (iambs describing the usual topography of spoken English), as if the narrator is casually giving advice to his readers as we walk with him around the ruins.