Nice portrait. I agree with @ranartblog, hatchings are good for sketches and monochromic stuffs, but here, as you have paint your portrait in colors with shadows and volumes, the hatching is too much, you should have accentuated the shading with a darker colour instead.
This is a good work anyway!
I agree with @pipoune about agreeing with me :o)
Once again, good artwork.
:D