A split comparison screen showing on one side a quiet modern bedroom with a person lying on a mattress, and on the other side a schematic visual of an imagined pavement surface collapsing, proving the contrast between real environment and perceived illusion.. Spatial layout: Слева реальная комната с кроватью, справа воображаемый провал поверхности пола.. Context markers: standard bed mattress, modern bedroom interior. The complete visual composition—including all primary subjects, secondary supporting elements, boundaries, and environmental contours—must sit comfortably inside the canvas with generous clean white negative space visible on all four sides (target 8-12% margins, minimum 6%). The entire visual assembly must occupy maximum 80% canvas height and 84% canvas width. Nothing touches or crosses any canvas edge. Do not crop the primary subject. Clean isolated 2D explainer composition against pure white/off-white background. hand-drawn 2D explainer cartoon illustration, confident clean black outlines, flat cel-style colors, simplified readable forms, soft minimal shading, clear focal hierarchy, clean educational YouTube illustration, no photorealism, no 3D rendering, no typography, no text, no watermarks
