Better!

But what's that string of pixels on your left side jaw and chin? Anti-anti-aliasing? ;)

Right-side jaw line is a bit jaggy too.

Are there actual neutral greys in the photo? I don't think so...

Ok, thanks everyone.

And what about it now? Is it better or worst?

(Once again sorry for my english...)

Agree with comments. It's flat probably because of your ref picture, which was obviously flash photography: flattest light.

It's also what makes it nice, and you might make better use of that.

I'd recommend to make it 50% smaller, to make the pixel-level work easier and more interesting. Go for nice pixel lines and clusters even if they don't perfectly fit the ref.

Colors are way too many; avoid pure saturated and pure greys.

Edit here, 50%, 11 colors. The eyes don't look so great but I'd need the ref to go on! ;)

Yup i was talking about a reference picture, it's always interesting to check a reference out.

 Definitely needs some volume, but I think you have something! It's got some charm, and the mouth is done well.

Ok, thanks, I'll try to fix it.

"Any reference?" - I didn't understand that, You want the real picture? I don't have a scanner... :(

You were sort of flat when you were six. Try to work on your shading !

32 colors ? Seems a bit high for what you show right now, you have a lot of useless colors, you should clean up your palette :)

Any reference ?