It's actually pretty good, I think that maybe you should just copy other pictures of people, because then you'll be able to get into more of the flow of the proportions and the way the body looks That's what I do a lot
like just google it and look for pictures and just copy them, then after doing that for a little you can use those habits on your stuff ^.^ it works really nicely...

It looks good, there are just some little things that will make a huuuge difference Like the using perspective, that can help with drawing the feet... and simple stuff like saying "what does this actually look like on a person" then that can help with stuff like where your curves go like for example calf muscles on girls are bigger at the top then get smaller... just stuff like that

Also establishing a lightsource with help you with your shading and also letting things flow, if you look at pictures of hair, hair isn't stuff like that, it moves and flows with the other peaces of hair...

This is just a little constructive critism, really i think it is good ^.^ I just know you wanna be better and by all means haha I'm not very good either hahaha