I'm working on some grey alien illustrations, and I was wondering where might one find the standard appearance of these little devils?
There seems to be much artistic license taken, so I was hoping to find something more standard from the people who claim to have some authority in the area.
What / where is a standard depiction of the "Grey Alien" known from the 1950's onward?
*note, this is the best stackexchange I could find for this question since this is in a way worldbuilding.