Would you say the picture below (by A. S. Shevchenko) is almost like an optical illusion?
Have you seen any pictures or sights that fooled your brain for a moment but that you wouldn't call optical illusions, and if yes, what is the salient difference?
That's because it should have been the door, dammit.
...But really, this pictureis pretty "straightforward" as they go. No other interpretation, really. Why did it tease you and me but not Elo?..