That raises a new question then.
If your perception of beauty is something you hold dear, and if you have your own opinion about it, why do you care for our advice?
And "westernized standard ideas" lol... I look at a woman, either she's hot or she's not. It has nothing to do with her clothing or hair-do. If you look for guys who go for that, in most cases you end up with a dirtbag. So the question here is, if you want our advice and we give it, why do you feel you need to make the point that you don't care for westernized standards? You sound confident enough to make this decision on your own.
You asked for advice and you got it.I personally like ethnic girls, whatever ethnicity it be. I don't care if it's curls or straight. But if I was put in a place where I HAD to answer, I'd say go with the straight hair, see how it works, if you like it, keep it, if not, go back to your old hair style. Simple as that