I love this forum. So far I have one vote for green and one for brown eyes. And one comment to use the first hair and one not to use the first hair.
But seriously, many thanks to both of you. I'm still undecided, but it's good not to be ignored, even with such a minor request.
@ El Di4blo
She'll have the first hairstyle early in the game (when escaping the Vault), then she'll use the second one, because it's more practical in the wasteland (and I'll be mostly wearing a hat or a headwrap anyway, and this hairstyle is displayed properly with a hat). After a while she'll get a head injury (at least I'm planning her to have one, poor girl!), and the doctor will have to shave most of her hair before treating her. After that she'll use the third hairstyle for a long time.
I know, this sounds crazy, but I want my character's appearance to change a little over the course of the game, but I also want to have a roleplaying reason for doing so. Otherwise I'd feel like I'm not playing the game, but having a model pose in a wasteland setting. (No offence of course to people who do like to change their character just for the fun of it, it's just a personal preference.)
@ Ashya:
You're right about the colour of the screenshots. I'm using ENBseries, so my game looks like that all the time and I forgot to remove it for the screenshots.