I told a girl her makeup made her look like a drag queen
Why would you tell her she looked like a drag queen?
I've noticed that she had more makeup than any of her friends
It's impolite to make negative comments about someone's appearance. You shouldn't tell someone that their makeup doesn't look good. You should keep those thoughts to yourself.
I just want to brag about it and make her feel insecure about her appearance.
Well it's not nice to try and make someone feel insecure. Like I said, next time you should just keep your thoughts to yourself.