On the face, the eyes are half way between the top of the head and the bottom of the chin. The mouth is one third down from the bottom of the nose to the bottom of the chin. The ears are directly back of the eyes. The top of the nose is usually half way from the eyes to the bottom of the chin. Variations in these average proportions is what we become aware of to obtain a likeness of the face or figure of a person.
Hands hang about one third down between the crotch and the knees.
To add other proportions to your list, just simple start studying people. Whenever you see a photo, drawing, painting, print or other image that intrigues you, collect and save it if you can. Commercial artists called this collected material their Morgue. Try to determine what captures your fancy. One area should surface in your mind and when it does, pick out the elements that isolate that interest and abandon the balance.