Twenty-years-plus on, we still see lots of crossdressers and also some Trans-ladies still walking around with the ‘red slash’. It really does nothing to make them look attractive.
Clients natural lips
Bright lipstick is best for the younger model and a ‘full mouth’ can look extremely sexy and pleasing. Smaller lips should have a softer more pastel colour, but... smaller lips can also be ‘corrected’ (enlarged with pencil and lipstick) and look so much better with a little thought.