Well, if you want to get better keep drawing from life.
Over and over and over and
over until you are awesome.
Kids are the hardest to draw, just so you know. Don't get discouraged when they don't come out well. You just have to keep at it.
In your figures, always be aware of the center of gravity. One of my teachers always talked about
planting your feet so the figure doesn't look like its tipping over. You just have to look at the leg that the weight is on and move it back. Make sure its
under the body to support it.