Lovely work. You did a fantastic job with the details and shadowing on her face and hair as well as her shoulder. The only thing I have to comment on is her clothing. It's too white and gives the picture an incomplete feel because it sticks out. Other than that, you did well with this.
Hmm, I'm an avid yuffie fan and this, like all your other work, is very realistic and incredible, but something about this and the other Yuffie portrait is off. Her expression somehow doesn't fit her. At least to me, there always seems to be a glint of childhood in her eyes and here she mostly looks serious and focused. Which of course, ninjas are focused but the personality just doesn't quite fit. Maybe it's just me, i don't know