Many of my creative friends are both extroverts and introverts at the same time, or more correctly in constant exchange between the two poles. Getting along well with their peers yet feeling very comfortable when by themselves.
Creative psychology tends to ignore standard conventions of gender, as the individual seems to pick traditional gender traits from a Chinese menu. They also tend to be conservative yet rebellious; the best person to break rules is the one who knows them best. They tend to be passionate yet objective. Ignoring unwanted advice, while seeking out criticism so they can improve, yet capable of being hurt tremendously if the criticism is too stinging.