Okay first off I would just like to say, this drawing is cute. I love the lines, I’m going to assume you have a tablet, and ever though it’s sketchy it was easy to see what you where going for. Of course, as your well aware, by your writing on the side, there are a few think that seam awaked and a bit off about your picture and, because I know a lot of people learn better from visuals, I went ahead and did a ‘blue’ line for you. In no way should you take my blue line as what is right, it was done quickly just so I could help you get a better fell for what I’m going to suggest.
1) First off, your person seams to be very off balance, when you start it is important to draw a center line. This will keep everything in check and will prevent your people from looking as if there about to fall over.
2) Make sure you keep basic proportions in mind when your drawing, for women shoulders and hips are the same width. Shoulders should be two heads wide (I’m going to assume, because your drawing anime, you know what that means) Elbows hit right around the bottom of the rib cage, and wrists some where around the hips. The top and bottom portion of the arm are the same length and legs are just about half of your body’s totally length .
3) Boobies! Lol okay, the chest is directly effected by the arms, if the right arm is raised the right breast will be naturally higher than the left.
Mostly, I think the majority of your problems stemmed from you center line. I think, if you keep your center line in check and keep practicing anatomy you will have it down pat in no time. As it is you seam to have a basic fell for the human form. I would suggest drawing from real life (photos, people you see around you, TV) as a good way to start looking at anatomy a bit closer. Anyways, I hope this helped and I hope I didn’t come across as harsh.