[Summary: Emilie found the female characters in the books very well realized and wondered what Mr. Martin thought about this ability to depict women so well.]
That's very flattering, and also very hard to answer.
I like women. Hell, I like women a lot. But in the end I try to write all my characters as people. All characters are built on observation -- observation of those around you, and observation of yourself as well, since all of us male and female have many of the same basic drives. I have written the viewpoints of dwarfs, aliens, werewolves, vampires, and many other fantastic creatures, all a lot more different from myself than a woman.
And besides, if I screw up, one of the women in my life is sure to tell me. <g>
But thanks for asking.