Drawing the Human figure

It is often difficult for beginner artists to accurately draw the human figure because its proportions seem not to match up and the eye is very keen to notice any imperfections in the human form.  I was looking up basic bodily proportions and found the typical: your foot is the length of your forearm, your arm span is the same as your height, etc.  What new information I did find is that the length of the body is approximately 8 head lengths tall (with slight adjustments) and many areas on the body always align the same way.  For example your wrists sit at your hips, and your elbows line up with your belly button.  Furthermore, it looks like Da Vinci had it wrong in his Vitruvian man, because he portrays the center and bend line along the space between the legs, but it should actually be about 1/4 head length higher than that.  Additionally, there are other methods you can use to map out facial proportions, such as the Fibonacci sequence.  His spiral idea of “1,1,2,3…” is displayed in the human face, head, ears, and body (as well as many areas of nature).

http://www.realcolorwheel.com/human.htm

http://design.tutsplus.com/articles/human-anatomy-fundamentals-basic-body-proportions–vector-18254
bodily proportions human lengths 8 head lengths fibbonaci in human face fibonacci in mona lisa