Cinderella feels trapped
The majority of Disney films contain a lot of symbolism and themes beyond the comprehension of most children. But it’s precise because of this that these films are so brilliant. Children, adults, and film students will all enjoy the various layers of the film.
This scene is very dark and somber, which anyone of any age can notice. However, as children, we were oblivious that the massive window cast a cage-like shadow. This represents Cinderella’s sense of being trapped.