The Fanfan served in the Red Squadron at the Saint James Day Fight on 4 August 1666 and whilst they may have had an armament of up to eight guns (presumably small calibre) the Fanfan appears to have had only two to defend itself on the day (1).
Derived from the Dutch word for 'hunt', the English fleet had only just introduced the yacht into service from the United Provinces earlier that century which were seen as ideal dispatch and courier vessels. One of several built but his time, the Fanfan was commissioned by Prince Rupert in 1666 and appears to have survived the war, being relegated to harbour transport in 1692.
I have a perhaps obvious preference for a greenish sea just to be different but also inspired from several paintings of the era. Nevertheless, I have based all by vessels on 3mm glass in accordance with the recommended Langton dimensions which I cut myself - it's surprising how competent you can get at it with only the smallest amount of practice. I wanted glass so it wouldn't scratch and sits under a better weight than perspex. It also means I can fight on other different coloured surfaces.
(1) Frank L Fox, The Four Days Battle of 1666, Appendix H.