This is a stellar digital piece! The cyborg terminatorish parts coming out looks like its been done with sooo much passion! really digging the blurred neck, because it brings the face right into focus!
clever clever clever

Just needs some stronger carving of shapes in the face with shadows and highlights.
under the nose, under the lower lip, under the brow... could all use darker darks.
and the tip of the nose, the cheeks, and above the brows could maybe use some lighter lights.

Stellar piece! I can only hope theres a terminator inside all of us! <3 XD
Graham