It's a double-edge sword I come across quite often when doing artwork. There's this strive for realism, yet in reality...even the most beautiful among us are flawed somewhere. So do we add to the realism by making our models imperfect? But then in doing so, can we live with what looks like an imperfect piece of artwork? Because inevitably, the viewer will be drawn to the imperfection and assume it's the fault of the artist and his/her inability to create a perfect person, rather than assume the imperfection was intentional. That's been my experience anyway. Happened a lot in the days I used to draw portraits for people. I'd draw them exactly as they were, and they'd have a fit that the nose was a little crooked (even though in reality, their stupid nose really WAS crooked.) I'm still never sure which way to go when in that situation.