Just downloaded SAI
Thought I should try it out and made this sketch, I won't finish it though, since I still trying to get the hang of the software.

Its an ok start.
I suggest you familiarize yourself with the programs interface and work on your over all lineart before attempting color.
The linear, as is very presented,.is bumpy and uncertain of its movement, ease the brush strokes, set a stabilizer you can work with, even erase constantly untill it looks more defined.

For the anatomy, I suggest looking up references of what you're trying to do; and follow its techniques.
Its hard to cnc in its current state because of it being a headshot, which can be defined by the torso which isn't entirely present.

Keep practicing.

Quote from Xero

Its an ok start.
I suggest you familiarize yourself with the programs interface and work on your over all lineart before attempting color.
The linear, as is very presented,.is bumpy and uncertain of its movement, ease the brush strokes, set a stabilizer you can work with, even erase constantly untill it looks more defined.

For the anatomy, I suggest looking up references of what you're trying to do; and follow its techniques.
Its hard to cnc in its current state because of it being a headshot, which can be defined by the torso which isn't entirely present.

Keep practicing.

Oh thanks. The lines are bumpy because I made them like that by increasing spread, to give it this pencil-ish feel.