The blue of the the sword-wielding officer is based on a plate in Osprey's Colonial American troops, 1610-1774, Volume 2. I don't have the book yet, but there is a preview on Google Books. He wears a buff coat made of leather. This was an effective defense against Indian arrows, but not a well aimed musket shot. I had thought the model wore a cloth vest, so I'm glad I figured that out before it was too late.
Next I'll be painting the first set of Indians. They're primed and ready to go. After that I'll do Pilgrims set #1.