A single key frame from a modern premium 2D hand-drawn animated film, in the exact drawing style of the character sheets in the images: clean ink lines, flat colour masses, two-tone cel shading, warm painterly backgrounds. Wide 16:9 cinematic composition, characters exactly as on their sheets (same faces, hair, clothes, proportions). No text, no letters, no writing anywhere; any paper is blank or shows only a simple pencil doodle. Use image 1 for Otto's exact look. Use image 2 for his open window (left side of the image). Medium close-up of Otto leaning out of his open window, framed from the chest up, the street gap behind him. He throws a white paper plane forward with great determination, arm extended, tongue out in concentration.
