Well this one is practice work. Snap of a korean girl.
I have got this snap in some Korean news paper. I like her hair style so just tried it.
For pencil shading u have to do much practise. Otherwise these pencils strokes doesnt look good in sketch.
Bcoz there is only 1 colour black, so need to do it bit carefully. And 1 more thing paper which you use for drawing play very imp part in shading. If you use smooth paper it'll give smooth texture only. There are artists papers avaible in market you shoud use them while sketching.