The Red King is based on a portrait of George II as Prince of Wales in 1716, while the Queen is (very vaguely) based on a portrait of his wife Caroline of Ansbach in the same year.
Here's Anne and Marcy! (Got a sort of Vader-Luke Skywalker situation going on here)
I can't actually remember who these ones were based off of - I think an Archbishop of Canterbury, but I changed the white vestements to pink to fit the theme. Probably sacrilege, that.