I tried a different approach with colours and shading, any tips are most welcome.
Nicely done, I like how his hair is much more detailed now.
@Mandrill That looks really good!, but i really suck at details.
EDIT: i also added some details to your edit: imgur.com/8A8tP6n.png
I hope to get more tips on adding more details to my pixel art.
I think you succeeded. The colours and shading are nicely done, but some details wouldn't hurt. :)
I made some anatomical corrections and added more details without changing the style too much. I hope you don't mind.