Hey, glad you liked it. Google some art by Escher, he made some really amazing stuff!
One of the many things he was known for was drawing tiles that fit together seamlessly despite looking very differently from each other. Such as this one where he tiles bird together and space between them look like fishes, and vice versa!
The idea of the Escher tower was to make the Drawing Hands seem like it's drawing one of those birds. Then the birds splits into fishes like in that other drawing.