Proportion Reference

I was trying to explain the body's proportional breakdown to someone the other day, and was frusterated by the fact I couldn't find any pictures online to illustrate my descriptions! ... My sister noted my irritation and mentioned I would probably waste less time just sketching one up instead of scouring the internet for it.

ANYways, this is a very quick and very incomplete demonstration, but I just wanted to illustrate some of the techniques I learned by and still use.