I find Pinterest is a very good place to get lots of ideas from and so I always make sure to create boards at the start of a project and keep them updated as ideas develop. I have included a link to some of the boards I made for this project.

https://www.pinterest.co.uk/jazzy_121/magical-academia-world-building-references-outside/

https://www.pinterest.co.uk/jazzy_121/design-a-world-group-6/

https://www.pinterest.co.uk/jazzy_121/build-a-world-character-references/