Brainstroming

This is going to be a group project. But before we get into groups, everybody has to come up with some ideas of digital environment. We have to answer the questions about the time, mood, characters, function and story.
My initial idea was about giant mushrooms. But it needed further development. So I thought about the mood of the environment. The mushrooms will be on a different planet. The planet will be dark, because it's far away from the sun. But it won't be cold. It will be heated by lava. So there will be warm, dark colours and a lot of smoke. Then I thought about characters. They would be aliens who live in the mushrooms and eat them at the same time. They live in tribes, they don't have high technology. When they eat the mushrooms they live in, they have to move to a different place, where fresh mushrooms are. So the function of the environment will be place to live and source of food for the aliens. I also came up with the story for this environment. In my project I will show the environment after the battle. The battle was between two tribes who were fighting for fresh mushrooms.

Here is an image of my brainstorming with some drawings: