What is Venturi as defined with pictures?

In this case, abstract is not used as a simple definition, but instead as a statement declaring that the picture does not conform to any of the other pre-ordained categories of art. Abstract in the...

If it's a picture of the same picture then it's known as the Droste effect. But a more generic for this is just a recursive picture.

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if you do a donkey face it is a donkey

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