the building structure is beautiful, and the colour choice, trees, ground almost everything looks good, and the most interesting object is the human object wearing glasses which is eye-catching in the classroom. very well done.
There is some issue with the positioning, as happened same with me because of WebGL. However, I like the game objects that you have created in different colours, and also you used the staircase effectively.
I love the colour choice in your project and the clouds that you have created. Moreover, this project can have a human object, that would be more interactive. However, I like what you have created.