Mini portraits

I've being doing this tiny portraits lately, it's an easy way to draw everyday, even if I have exams, without losing too much time (they took me like 5 min each so...)
I'm just trying to improve the way I draw faces by coping photographs.
I think you will only be able to recognize one or two of them all. (Those are supposed to be famous people)
Another thing that seems very clear with this is that I am better with boys than with girls (artistically (?))....
Anyway, I'll keep doing this, I really enjoy it.

sorry for the bad quality of the photo, again...

the girls are fucking horrible.... I really need to try harder.