Originally Posted by joe_000:
“I actually think the 1975 versions look better than the 2015 ones.”
Yes, without a doubt. Also, the '75 ones had different facial features; Broton had a broad nose, the female Zygon (Lamont) had a short peaky nose, almost button-like and pursed lips, the other main male Zygon had a broad mouth.
Today, the main Zygons all seem to have the same face with no subtle differences.
The enlarged frontal lobe seems to have lost a bit of its creepy overhang, as too the bent spine, all of which are embryo-like and the very thing that the look of the creature was based on.