This is excellent! And I can tell that you poured a lot of you in this. I truly understand. If I am not honest, however, I would not be able to explain the score.
The only, and I mean, only reason why I did not give yo a perfect 5 is that the shadows of the jaw and facial features are missing or not completely shown. This may be because of the translation from pencil to digital (I have a lot of issues with mine).
Please understand that I think that this is amazing, and I marvel at your ability. Do not stop.