@ Frank G.:
You are not absolutely right:
Humans are different. You are right from the view of a european standard of the artists. But don't take that for the whole truth.
When I read Tintin, I always thought that Hergé draw the persons wrong, but when I looked closer at people in real life, I saw there are a lot persons with less long legs!

Look at their proportions for instance:
http://www.unics.uni-hannover.de/LMChemie/Grafiken/LCI_gross.jpg