Hi!, Lisandro’s here. This is my first post and I apologize in advance for my english: I’m Argentinian.
This is my first head model ever and I did it following this tutorials serie but using a toon reference.
Once there I played a little with the sculpt tool: I corrected some little mistakes and I added hair and a scar.
What do you think?
Looks nice! has an anime style.
Greetings!
I dont like the topology but I way better than my first head. So its good for your first. 
I like it alot, 
Shows real skill,
Keep up the pixel hammerings, and churn out some art
now, learn how to bake him down to a low poly mesh, without loosing any detail, and I can put him in a game
have you rigged ever yet?
need some help?
(vertex hooks are a good place to start but they can not go into the game engine @ the moment)
armatures are the way to go, but the more faces you have, the less likely you can use automatic weights,
with a complex mesh, it is best to assign vertexes to groups as you go, like “RightCornerofmouth” or “center upper lip”
these make life much easier later on
The topology flow is generally good, but the area under the nose needs some work. the faces are stretched and rectangular.
