I'd say to keep the Guardian/Avenger models like they are. Use this model, with smaller wings and top fin/thingy of guardian to take the old executioner's place and make a fattier one to take place of upholder.
"It's not a compliment, it's a matter of fact. I never saw you whining about stuff when it didn't go your way, you never do ooRP-arranged stuff, you're active, you're good at playing your character ingame and you're neutral enough to not end up as a clown infront of the community."
