Keywords:

Binocular Shape, Color Image, Concepts, Environment, Eyesight, Horizontal, Human Representation, Ideas, Illustration, Illustrative Technique, Lens, No People, Ocular, Optical, Outdoors, Photoreceptive Cells, Railing, Retina, Sense Organ, Sight, Sky, Steps, Tree, Visible Light, Vision, Visual, Visual Perception, Visual System, Ability To See, Bannister, Color, Concepts And Topics, Conceptual, Illustration And Painting, Image, Imagination, Mental Picture, Natural, Nature, No One, Nobody, Perception, Picture, Shape, Staircase, Stairway, View, Inverted image, Sense organ