Ent_delivery_rider in a dark jacket and delivery gear stands on a desolate street, halting his bike. He looks up towards the top floor of ent_abandoned_hospital where ent_little_girl (small silhouette with a red cloth/scarf) waves frantically in the window. Cool nighttime lighting with a focal warm hue on the waving red scarf. 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
