My Final Decision:

My storyboard:
My first design is a music box that adjusts the brightness of its light based on changes in the external environment. The specific design can reference the style of Hayao Miyazaki’s film Ponyo on the Cliff by the Sea. The space inside my Snow Globe is divided into two parts, the bottom part of the goldfish girl will be filled with uv glue or Water, and the top part of the boy’s home will be air, and there will be a light sensor on the base, and based on the analog signal output from the sensor, and then a further analog signal to the led light to change the intensity of the led light.
My Google Doc (including my Introductions, Materials, Steps)
https://docs.google.com/document/d/1EE5aoazBO_mgFl9PXqxeZD2Y1nNrRYG8QRDSCAn7P5U/edit?usp=sharing
Link to the Instructables user profile:
https://www.instructables.com/member/hzhang66/instructables
Photos of your prototype circuit and form:

Tinkercard Link: https://www.tinkercad.com/things/dCHrCDoQGFT/editel?returnTo=%2Fdashboard%2Fdesigns%2Fcircuits
Love the Idea!! Maybe in the doc, make the links smaller just so they look better, and for the first steps, maybe talk about how you are going to make the decorations or what the decorations are :D. For the Instructables make a draft project and start filling it out <3 Otherwise good job and I'm excited to see the outcome!