Here are some videos showing progress on the Matilda song
In the “Harmony system” used here, I am inbetweening drawings by drawing between the red (the previous drawing in the sequence) and green (the next drawing in the sequence) In this song, because there is so much action, I am drawing every frame (25 frames/ second) whereas many Disney films rely on 12 frames/ second with every frame exposed twice. This more labour-intensive approach should guarantee much smoother action.
The upper body is sketched in with rough lipsynch in blue
here the arms are encased in jacket sleeves and the whole jacket is added to the figure. Matilda is sketches roughly in blue. For a fuller image, see the end of the previous post (Showreel)