Well, it's obvious that you're doing the ragdoll thing because you don't know better, however, I think the ragdoll thing can work for you. You still must learn what's really going on with the body for it to work though. Know were the joints are so you know where the bend is coming from.
If you want to continue the ragdoll type anatomy, I would say start to learn basic anatomy and gesture.
I can't provide redlines because of this stupid waterwall crap at the office that blocks us from uploading anything, so you'll have to visualize.
Proportion
The powerpuff girls are an example of ragdoll anatomy. They are extremely stylized. They are only two heads tall. (Meaning the entire body except the head is the same height as the head is by itself.) Your figure is about 4 heads tall. Which is fine, but be consistent with it. Make sure that the figure in that style is always 4 heads tall. Measure by using the head.
This is where it's extremely important that you learn the actual anatomy and proportions of people, so you can correctly distort an 8 head person into 4 heads. Certain things are always in the same overall spot. (That's how proportion works.) When you learn that, you can draw the same figure in different proportions, which is how you get chibis of characters and people you often will see people do.
Same figure in different proportionsHere you can see two
very differently sized women. If you measure based on their heads though, you can see that they share the same proportions, one is just more stretched than the other. This is how proportion works.
Anatomy
Go back the the powerpuff girl picture. Notice that while they are ragdolls, their elbows and knees still work? The beds make sense because the artist understands how arms and legs work. The artist also understands how the muscles of the face work and is able to make expressions no matter how stylized the face is. Cartoons don't come from nowhere. They come from people interpreting reality. So the more you know about reality, the better your interpretation will be.
For now, learn just the basic make up of the body. Simply the skeleton like this with a sharpie over people in magazines.
Balance
Point to the top of each girl's head and draw a straight line down. Do this one every picture in this post. Notice that the head is balanced over the body so that the feet are evenly spaced on either side or the head is over the foot that's bearing the figure's weight. Heads are heavy. You should try to be sure it looks like it's supported by the body under it.
Draw a line down from her head and see her weight bearing leg. (Standing leg.)Perspective
Keep is simple. Just remember that everything takes up space. Your feet on the floor take up space. If you consider the space that things take up while you draw, even simply, things go from being very flat to being more 3d.