Uhh.. I said nothing about metamporphosizing. The photos of real actors in John's room look nothing like his dad either. Troll Will Smith does not look like HIC. Etc.

Ok, I guess the confusion is that Nymphs are said to have a "metamorphosis", but we don't actually know what that means yet and there are various mixed signals regarding it. The Caretaker doesn't have a human face under her squid head - but the guardians of the Homestuck kids also do not have faces. I am assuming for now that she is subject to a form of abstraction like all HS adults. Under this pattern, adult satyrs would be abstracted to just have horse heads. That this is very stupid is actually just another piece of supporting evidence.