It looks pretty nice just...the eyes seem kind of empty and disturbing because of the size.... either you make them a little smaller either you add a pupil or the circle around it~you decide :3
About the hair...I understand the flow but the way the strands stay at the end it makes me think at the indian carpets[like from Alladin] that have strands at the end.Plus....look at your hair when the wins is blowing it.You see the strands aren't aligned.Each of them has it's own flow.It should look SOMEHOW messy 83
I did some lines for the hair to see how I'd make it flow.The other things I changed wee the pants [or jeans?] they are large so they should have some folds...mostly because of the movements the air makes them change.And even if they should be skinny and large at end they stil have folds in the knee area.
About the elbow...er..it looks too round it's like the girl is a cutie jointed doll with balls as joints...I can't really explain the shape of it but sometimes it's different.It's square-i like but also in a triangle shape like...it depends from what angle you look at it.Drawing is easy if you have talent...and you have 83 I like the idea but never think your mind can make up everything.You have the best reference in you.Take a mirror and look at yourself to help and make a complicated drawing easier. Hope I helpped.
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