I like everyone's advice, but I have one thing to add. o: THe neck hits the shoulders at too hard of an angle. It's not a 90 degree angle, and I only noticed that recently. If you put on a camisol and look in a mirror at how your neck connects to your shoulders, you will notice it. x3;

I dunno that sounded more helpful in my head ;^;

First One

Your body needs to curve in more, Arms are a bit too long, 

Second One

Second part of arms are a bit too skinny, Move head down a bit, Needs a bit of a fatter neck

Lol that's all I can currently think of, but I think you're improving :)