Now if you run the program you will see a complete skeleton plot.
You can argue that there are better ways to organize the code but you have to have a list of the joints you want to draw lines between somewhere. This dumb approach does have the advantage of making it very obvious what work you have to do.
A better approach would be to store the sequences of joints in a collection and then write a routine to render each of the body parts as a polyline.
If you want to try taking it further why not change the drawing of the head for an ellipse and a rectangle for the body. You could even take cartoon or photo cutouts of various body parts and use them to mark the position of each of the skeletons body parts. The effect that you can achieve by being just a little creative are quite impressive and very easy. .
You can download the code for the Windows Forms version of this program from the CodeBin (note you have to register first).