A woman can have all the qualities that make her classy according to those sources and still not have much class.
Simple, straight colors (white, black, blue) flatter most women.
Very often the real meaning of words get lost and replaced by secondary characteristics or euphemisms.
“I’m sarcastic” is supposed to mean “I’m funny.” Contrary to what every third person on Ok Cupid believes, funny and sarcastic are not synonyms.
Being professional, educated, and having a great sense of humor are very attractive qualities in a woman.
However, if she has temper issues this pretty much cancels out her potential to come across as classy.