you don't really need very sophisticated model for this. just use dlib to detect face landmarks and apply some very basic hue/contrast/brightness localized fil

you don't really need very sophisticated model for this. just use dlib to detect face landmarks and apply some very basic hue/contrast/brightness localized filter to imitate lipstick, make-up, mascara, etc. that's what some software can already do out of the box (e.g. zoom) and the results are very good