It's really good, but I can see a few mistakes. Don't worry - everyone makes them, even me.
Make sure eyes are always the same size and parallel to each other.
Hair should be more realistic. Like, the edges shouldn't be the same; be creative and make them all different.
And, a body is 7-8 heads high. Yours is a little less. Everyone makes this mistake, it's fine. Just pointing it out.
I'll give you a 7.5/10. Pretty good. Keep it up. I really like their clothes, I'm never creative enough to design clothes.
Sorry if I sound rude, I guess that's just my way of giving constructive crits.