A while back, I can’t remember where - but somewhere online - I saw an image of a woman’s face that had been photoshopped so that it had double the normal set of features - so two pairs of eyes, two noses, two mouths - stacked up so that one set was above the other.
It wasn’t even slightly scary, sick or anything like that, but it did have the peculiar quality that it was almost impossible to look at - if you try to focus on it, your eyes can’t make sense of it and they flit uncomfortably back and forth across it without being able to settle, or make sense of it.
That reminds me of another image from back in psych class.
It looks simply like an upside-down image of Queen Elizabeth 2. Nothing out of the ordinary.
But if you flip it rightside-up you notice that they cut recatangles around the eyes and mouth and turned them upside-down. It looks absolutely ghastly.