It worked for me!  Pretty girl!  Optical illusions are always baffling to me.  I especially hate the one where you're sitting in the car in the store parking lot waiting for your husband to come out with WAY more stuff than he went in for and the car parked next to you starts moving.  It gives me a start because I think our car is moving for a few seconds before it registers in my brain.  I know you're brain has something to do with it, so, how DOES an optical  illusion work?

An optical  or visual illusion is characterized by visually perceived images that differ from objective reality. Here's how it works.  The information gathered by the eye is processed in the brain to give a perception that does not jive with a physical measurement of the stimulus source. There are three main types: literal optical illusions that create images that are different from the objects that make them, physiological ones that are the effects on the eyes and brain of excessive stimulation of a specific type (brightness, colour, size, position, tilt, movement), and cognitive illusions, the result of unconscious inferences.

I use the non-scientific term of "it makes my eyes bug out"!