you need a teacher that can be side of you and show you everything, or be really motivated and learn it by your self. As everything it may looks hard in the beginning but with some work and passion you can learn it pretty quickly.

Have you some friends, who can teach me?

The flat looks really, really good. It looks like it belongs in an anime or comic. But the way it maps, it doesn't look that good on the head, imo. the eyes look too far apart, nose too big, and the mouth a bit too low.

Maybe it looks different in game.

Indeed I made a face, then once was done wraped it for make it fit well the head... a big improvement of this technique with some extra.

Dat are better, aslo what about size of head?
And put it in please.

all vectors, when I convert them into psp for retouches mapping and such then I usually prefer ca 1000x1000 resolution... but sometime i just go for 512x512 for make it less heavy
-----
btw, the old man texture still unsold

Just ask: how much are you looking for?

dont really know... I usually put heads in auction... i guess i can make 40-50 k out of this... even more since a year ago ppl were pretty interested in it and I recieved good offers for it.
I dont have a clue about the market now... so I cant really tell.

Huh, also, i have some suggestions for dat head:
. Change hair color.
. Add some piercing.
. Change nose.
. Add more shadows.

no no no no... that was just an example of a similar style. I'm not thinking to start to work on it again