The two ships are Argonauta and Monarca. Both were built in the 1790s after the American Revolution. The only major Battles they took part in seem to be those of the Trafalgar campaign.Argonauta with her bull or perhaps Minotaur (it has sixpack abs) figure head sports the Spanish "team" colors suggested by Warlord. The paint scheme looks great but is historically somewhat questionable.
Monarca a 74 has a figured head of a noble woman (perhaps a queen). The long broad yellow line actually appears in a painting of her at the Battle of Trafalgar so it was an easy choice.
I had bigger plans this week but with Covid hitting our house this is all I was able to get done. Back to conquering planets next week (I hope).