I used a couple different tools to generate my ideas:
Firstly, I used the help of the internet to research shapes and characters just for some Ideas of how I may place my own characters.
Pencil and Paper
I then began to sketch very rough shapes just to get the ball rolling. I continue to sketch until I find something I am happy with I then go back in and add more detail to the drawing.
Once I have a completed drawing I will then scan this image into the computer and redraw the image in Adobe Illustrator.