[Tsuruko]

The style that girl is wearing is a form of punk kimono style that is quite popular right now.

It is somewhat kimono-hime. I think it is a little untasteful and takes away the beauty of what a kimono is meant to do. I really don't like the openness of the front or the way the collar is done. Kimono looks so much better when worn up to the collar bones with the back of the neck showing in a wide expanse. In traditional Japanese aesthetics, prior to westernization, breasts were not the focal point of beauty in terms of body, instead, it was the back of the neck. If a woman in pre-westernize Japanese culture wanted to be risque, she showed a lot of her neck. . .

Oh! Sorry for rambling, I just don't like it when the collar of a kimono is worn so close to the back of the neck. . .

I don't think it's really what a female Yakuza would dress like. I think she'd probably would wear kimono traditionally mayhaps. I would suggest, if you'd like to do traditional kimono, yet give a sense of Yakuza, go with masculine motifs upon a kimono. Shishi dogs are good motifs, along with waves and eagles. If you can find a womans kimono with ryu-same ( dragons ) that would be good as well! : )