Here's what i'm thinking. If the doll head didn't really mean anything, those are usually things that would be in a fortune teller place. In the fairytale, Snow White finds the dwarf's house which is completely messy! So she cleans it up. I'm not sure if where the head is is supposed to be analyzed that much, but it makes kinda sence.Why do you find the doll-head among some candles, a goblet and a glass ball (with crest) in the Fortune-teller-place? And why the red shoe in the spotlight on the stage?
And for the shoe being the spotlight of the stage is because Cinderella deserved to be in the spotlight. All of the time, her stupid step sisters and step mother placed her in the back doing all the work when all she wanted was one special night out with the prince. So yeah, she deserved to be in the spotlight. If that makes any sence.