To be honest I didn't really know what shades to pick up. I just sort of went off my skin tone (I have very light skin with pink undertones). Skin with pink undertones tend to do better with lip colors that are also pink or reds that are blue based NOT orange. I use Red!, Rebel, New York, Beach Peach and Petal Pusher lipsticks and I have the Metropolis lipgloss. The wonderful thing about Red Apple Lipstick's lipsticks are you can apply sheer coats or layer it on for a more bold look.
I use Red Apple also. I love the red-sometimes I use it over gloss or mix with some of their lighter ones.