Haha! I knew it was Yuna just by looking at the thumbnail. I think the hair looks really nice, and I love the way you drew that ear piece hanging through her hair^^ The shading is nice and subtle. I think there should be some shading done underneath the nose. Maybe add a darker shade under the eyes, too, so they'll look sharper. That's just me, though. Oh, and I think her shoulders should be broader because the head looks a little large. Oh geez, I hope I didn't offend you. I only wanted to help. You got some skills^^ You got the potential to do realism:)

Wow, this is really good for just trying out realism! And the lips look fine. =]