The no-nose can be considered part of your style.
The only thing I find strange is the top of their heads.
It's flat, with hair on it. You need to consider that the
top of the head is round. It's a very easy mistake to make.
http://www.flatface.net/~bugeyes/images/anime/As11.jpg
The pic above is that of a girl with very short hair. It
demonstrates what I'm trying to say. That's a drawing I made about
3-4 years ago. There are some mistakes on it because I was at an
earlier stage of learning.
I like the way you drew the hands. I can't draw hands.
[edit]Now that I think of it, you have just read my first shameless self promotion!
this is also an example, though it's not anime style:
http://www.flatface.net/~bugeyes/images/anime/As07.jpg
Morfy's Law - Enythink thet ken go rong willll.
Cole's Law - Thinly sliced cabbage.