They are very nice but to me, they're too.... Stiff. Well, I'm studying to become a cartoonist so my anatomy preferences will be different from yours. I appreciate it though. Do you know any cartoonists who reply to comments? (You'd be surprised to how many ignore comment )
I put down the joints (the red dots) first using the proportions from the little figure on the left of the chart, taking into account foreshortening as best as I can (I spent some time earlier this year studying perspective--it really pays off.) I almost always use reference (bcuz meh skillz suk), so before the limbs are added, I check the joint positions against the ref. The match doesn't have to be exact, as long as the action is lively and clear, and the proportions not distorted. Another way is to start with the gesture, then check the gesture against the proportions in your head and what the ref looks like. Hope this helps!
how I judge heads is by the height of the character, keeping in mind the average human head is about 9 inches that way my proportions can stay correct throughout various heights without everyone being 7-8 heads high.
But the 7 1/2 is a good starter point definitely. I like how you've compiled this. It's definitely a good help to people wanting to better their sense of proportion <3
Thanks for the thoughtful comment. I agree that sometimes the total height is a better gauge, especially for characters with bigger heads (e.g. children.) It's fun also to see how much distortion the figure can undergo and still look "right".