Whiteboard animation

The prompt

Whiteboard animation: the whole frame is a clean white whiteboard, edge to edge, and the girl, the plants, the pots and the city skyline are all black dry-erase marker line drawings on it with a few accents in red and blue marker, the sky left as bare white board, each drawing sketching itself on stroke by stroke as it appears, slight marker streaks and a faint glossy sheen on the board, simple explainer-video character design. On a rooftop garden above a city in late-afternoon sun, a marker-drawn girl with a simple round face and short hair waters potted tomato plants with a marker-drawn watering can. Medium-wide shot at her eye level, three-quarter view, the camera holding still. 0–2s: she tips the watering can over a potted plant and a few blue marker droplets fall onto the leaves. 2–4s: a marker-drawn paper airplane glides in from screen left and lands on the rim of the pot beside her. 4–6s: she sets the can down, picks up the paper airplane and turns it over in her hands. 6–8s: she looks up and out over the city rooftops and smiles as the wind ruffles the leaves and her hair. Throughout: everything stays marker line drawing on a white whiteboard, new lines sketching themselves on as they appear, one continuous take.