This is a really striking take on Mai! I especially like the direction you took in regards to the face and even moreso the hair. She genuinely looks stunning in your style!
I also appreciate the lighting in this piece; those blue rim highlights really stand out within the darkened setting that you created in this piece. As usual, your rendering is excellently done, and even the traces of lineart through the piece add a pleasant sense of texture.
Superb work on all fronts!