Light Yagami writing in his notebook

A girl is smiling and writing in her notebook, with a light bulb above her head in a cartoon style, on a white background, clip art suitable for kids. The image is high resolution and in the style of Pixar.

Teacher bear writing on whiteboard: "musesai.io"

This is a view of a window, with light quality close to reality. There is a cat on the desk, and the pen on the diary moves on its own to write.