Those are some very nice additions to the original ship, Erwin. The taller mast with platform and extra sails make it look more authentic and the new gun matches perfectly.
So you have classified this type of ship as a corvette or a sloop of war for its British equivalent? Based upon the the number of masts and guns, this would be the correct classification, I think. Out of curiosity, what do you classify Playmobil's smaller ships as? I was thinking of classifying the older design large ship as a merchantman or brig, the older narrower ship as a cutter, and the new small vessel as a gunboat.