Create a vector illustration of a schoolroom. The wall should be light blue on the upper half and brown on the lower half. In the room, include the following elements: A work table with two chairs. On the table, place some children's toys such as ring toys, paper, colored pencils, and Lego-style blocks. Hanging on the wall are handmade cardboard numbers and a small blackboard. Additionally, include a small cardboard puppet theater with handmade puppets. Ensure the illustration features a clean, simple vector style with smooth lines and vibrant colors typical of vector art.