Happygirlygirl- That’s a very good question, and I am very impressed by the fact that you are asking it! I have never heard of any Rav assuring makeup, and my impression is that in fact, it is considered very important nowadays for girls to look good and feel good about their appearance and that nowadays, makeup is considered acceptable. The question is: How can this be so if we have those psukim in (it’s either Yeshayahu or Yirmiyahu – I believe it’s in a Rashi there) seemingly stating otherwise?
There seem to be two distinctions:
1. The reason why you are wearing makeup. Are you wearing the makeup for not lishma reasons (to attract boys not for marriage purposes) or are you wearing the makeup because you want to feel good about yourself and/or for shidduch/tachlis purposes (which would also include wearing makeup while not on dates in order that people will set you up)
2. It has to do with the type and/or amount of makeup worn. If you are wearing makeup in such a way that you really stick out, then maybe it’s a problem, but if your makeup is more or less natural and meant to enhance your features, then it should be fine.
It is important to remember that extremes in either direction are not good, and it is a Torah value to be happy and feel good about oneself.
I understand that you want to know what Daas Torah is on the topic. I believe that what I wrote is according to Daas Torah, but when I have a chance, I will try to verify for you if I can.