Before you start on any detailed design work you must create a moodboard. This is where you communicate your initial design ideas for your game. You should use it to get feedback from your game testers.
The moodboard should include inspirational materials/images for:
You should annotate your moodboard to explain your ideas.
Create your moodboard.
Resource 2 - Click here to download moodboard creation checklist
Resource 3 - Click here to see full mark example