Environment Design
Here, we have the foundations of the world. No matter what world you create for your IP, you will have environments. In fact, without environments, you have nothing. Does it matter what type? No. You create the environments that you need, are required to design, or just want to draw / write. We know nothing of our world unless we know our environments. Don’t be shy even if you don’t know much about geography or geology, weather or the clouds. That will come in time. But first, the foundations of your world!