What I mean here is, when you play a certain race, Do you always choose the same hair-cut, same facial expression, same gender…?
all my human characters have this same white hair old guy look (same beard even), all my troll characters are this red hair, clean face bad ass female… Although somehow my tauren characters have different looks.
What about yours? Same look with certain race or some people just prefer variety?

I didn't find the right solution from the Internet.

References:
http://www.mmo-champion.com/threads/1439460-Topic-Do-you-always-make-the-same-face

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