Ms. Fortune is playful and energetic, but uh... that should be pretty obvious? She's a bit one-note, only a couple hints at depth.
Valentine differs from speedy Filia and especially Fortune with her extreme discipline. Her idle arrogance works too, but Val is seriously badass.
Aside from showing off her... well, showy attitude and a bit of power, a shirt of Eliza with Albus and Horace would be pretty cool too.
Peacock is cocky, that's clear. This doesn't sacrifice that while capturing Patricia's determination and showing much of the arsenal at her disposal.