Similarity is an art study of perfect symmetry down the middle
This is a still life image of antlers in a vase sitting on a chair. It is an ink and charcoal drawing done by hand.
Closure is an art study of colors and circles. Every line is part of a circle or square. It is a colorful abstract drawing.
This is an image of a man sitting in a dark room upon your arrival. You are not alone. It is a charcoal drawing done by hand.