Parametric Negative Space Illusion Posters

2x2 grid of minimalist negative-space optical illusion posters based on [freedom and captivity]. python_scene_graph :: parametric_optical_illusion: class Variables: topic = "[freedom and captivity]" duality = "infer opposing or layered conceptual meanings" primary_silhouette = "dominant readable outer shape" hidden_image = "secondary figure formed by negative space" palette = "2 to 4 colors inferred from mood" style = "minimalist graphic design poster" class Composition: first_read = Variables.primary_silhouette second_read = Variables.hidden_image rule = "both figures seamlessly share contours and edges" density = "low detail, high visual clarity" class ShapeLogic: solid_shapes = "define primary silhouette" negative_voids = "define secondary hidden image" intersections = "meticulously balanced for dual reading" class Render: view = "flat 2D vector graphic poster" texture = "subtle paper grain" lighting = "flat graphic clarity, no photorealistic shading" output = "clean optical metaphor poster"