I've personally seen a couple different races.
Caucasian: most varied in my opinion. All different colors and sizes of labia
East Asian: tended to be darker colored lips. most had slightly larger lips that opened up after some teasing
South east asian: darker colored lips but wide variety of lip sizes
Hispanic: all the ones I've seen looked like coin slots. I know that's not always the case but 5/5 for me
All pink on the inside of course