I love the feel to it, it's very vintage looking. It has the feel of a candid shot. It's as if the woman was at home, minding her own business, and she took a few seconds out of her busy day to sit and smile for your camera.
The effect that the rain lends to the photo is magnificent. Just enough to make it different, but not overbearing enough to detract from the woman. Just right.
She REALLY fits, and the image looking old fits even better...also, something about the image, to me, fits her origins, too...then again, I lived in Sendai for awhile, so I might be biased. Well done to both of you!