The shade selection is limited, I think there's 4 in the permanent line (Bombshell, Beauty Queen, All About You and Fruit Tingle) and a couple of new shades that get released and then discontinued (e.g. Juicy Watermelon, Fuchsia Splash, Neon Lights and Tangerine Queen). I regret not getting Neon Lights when it was available (my blind optimism in finding the perfect pink is eternal), so the lesson is if you like any of the new shades, get them while you can. Along with Rosie Posie, there's also the recently released Night Owl, a burgundy/plummy/wine shade labelled as a matte but with more of a creme formulation.
l-r: Beauty Queen, Fruit Tingle, Rosie Posie