I think Patty is human, but not a "normal" human. If you want to see a human that could plausibly (with the addition of fake breasts and more body hair) be Patty, look up images of Russian boxer Nikolai Valuev (eg: http://i.telegraph.co.uk/multimedia/archive/01449/Nikolai-Valuev_1449245c.jpg ). He even has the "peaked" head and brow ridges (which IMO are not as extreme as in the drawings you show by Bill Munns, but closer to Valuev's profile in that picture).
Incidentally, Valuev is currently leading an expedition to look for hominids in Russia: http://uk.eurosport.yahoo.com/blogs/world-of-sport/article/67672/ I can't help thinking that he is motivated by people's comments on his own appearance.
And then my reply:
And I'll stick to my guns: Patty simply does not look like a man in a suit. A man in a suit has certain anatomical hallmarks that cannot be disguised, Patty does NOT conform to any of them. The anatomy is still wrong, and adding up all the individual exceptions makes the total more wrong still. But if you can actually produce a whole and alive human being that actually looks like Patty with the suit off, I'll reconsider my stance. That truly would be a "Naked Ape" in more ways than one. They would need also to have unusually broad shoulders and long arms, shorter legs than usual and also a caved-in cranium all at the same time But I won't stop you from looking if you want to!