Kourin Tatsunagi

This is supposed to be a birthday gift for a friend, but his birthday is wednesday. I had plenty of time to draw today, so I did this. He had given me a couple of ideas, two from Cardfight Vanguard! (which I have never played nor seen the anime) and Yu-Gi-Oh 5Ds (though drawing it felt... wrong, somehow).

Anyways, one of the Vanguard! characters he requested was Kourin Tatsunagi. I know nothing about her, and the best I could do was look up pictures on Google for some inspiration.