Actually this doesn't follow any specific rules, probably only some tradition. You are right that a typical Latin word order would be with a verb at the end and that wasn’t any mistake of yours (sic! This is why you still have been given the highest possible rating ).
I just suggested the opposite order because it was much more often used when the verb (sequi) was put in the imperative and was accompanied by a pronoun (it just sounds more natural to me). I think the order was taken for some metrical reasons, but it is difficult to say exactly...
Yes! "Licentia poetica" made it possible to create new meanings of words and phrases, new word orders and even new word forms! And some of those weird poetic solutions could evolve into traditions and became famliar and operative...