Well i just created a Follower, but his Face Skin doesn't match with his Body skin..

His body skin is normal when his face skin is gray !

Take a look : http://steamcommunity.com/profiles/76561198037296393/screenshot/451722154137833546?tab=public

What's wrong ? what should i do ? thanks

Does your Actor have any Template?
If it does, make sure the template has the same race as the actor.

Nope, no template.

Should it have a Template ?

You don't need a template if you don't want one.
I had a similar problem; it used the body of the template and the head of the actor, so it looked kinda funny.

Try checking this thread for a solution:
http://www.gamesas.com/topic/1343692-color-mismatch-facebody/

I'll check it out, thanks.

Pratically there is no fix for that... :s

My workaround for this Issue is putting a Hood on my created Follower.. xD

If sometime Bethesda fix that Issue, let me know please.