To show Dorothy's house falling from the sky, a miniature house was dropped onto a sky painting on the stage floor, then the film reversed to make it appear the film was falling towards the camera.

Performing sketches in the sand with an overhead projector, Su Dabao has extensive experience in both painting and stage performances.

Using acrylics in this way gives the artist a feeling of freedom to express himself, as this is only the initial planning stage for the painting.