Circle time
On the lower part of the pony tail it seems like the hair is just really flat, shading in the bottom half needs to be less liney, Start of the pony tail seems too stacked with the shading so it doesnt look as though it flows. The eye is lacking shading near where ive circled it on the more to the left. The right hand side of the face OPV, is also too line shaded which makes his face look really straight. Also the shading circled in the collar is too dark in places and the 2nd shade is stacked again.