Oh two port hulls, two port hulls
How can ya sail with two port hulls.
-with apologies to Richard Thompson

BTW The French adopted a new standard of iron guns in the 1680s and the bronze guns were
gradually replaced through the 1690s - early 1700s. The iron guns were simpler in form without
all the embellishment and the fancy dolphins. And FWIW the colour of gunmetal (brass) or bronze
guns isn't dramatically different, neither looks like a 'bronze sculpture', the appearance is closer
to red brass.
Sailing Ships of War 1400 - 1860 by Dr. Frank Howard is probably
the modeler's reference,
it really is a remarkably detailed work.