My initial response to the first photo: "Holy Shit!"
What a lovely collection. I used a bunch of 'mantle piece' ships for my own 15 mm fleet of ships for pirate gaming. I only semi-waterlined them, removed everything below the flat bases of the ships using a sharp chisel being careful not to damage masts and rigging.
Are most of your ships sourced similar to the recent addition or are some 28 mm purpose made ships?
As to my initial response, one must wonder the origin of such a pithy phrase!?