I can't imagine it being possible to take a bad photo of her. :-)
Actually, she had a remarkably well tuned reflex for closing her eyes at the sound of the shutter/mirror etc. In a fairly frightened way. A lot of shots in the bin... At first I was trying to shoot her at the same time as my friend was working at the other side of the (very small!) studio... she was quite stiff, and nervous even about unbuttoning her shirt a bit. Then Alina had a MacFailure and went off for an angry walk thinking she'd lost all her photos, so we had a long chat in the calm.
After that things got easier... once over the initial resistance to getting her clothes off, she was completely at ease, didn't bother putting anything back on during her cigarette breaks... but still had some involuntary tension when the camera was pointed at her. We did some breathing exercises... it helped.
She's still young, only 20. During the chat I found out that she's been in a romantic situation with another Lyon photog for about 6 months: I'd have thought that would have given her confidence in front of the lens. Then again, by that logic it would have been him shooting her portfolio, not me. Invent the story that you wish

PS Apple are going to fix Alina's Powerbook and she hasn't lost any images...
