My entry for Drawitbetter Contest! by 
The process
The Idea
It was very difficult for me to find a character but I choose Merceline from Adventure Time. Later I noticed that 
After I had my sketch I started with lineart.
Than I added flat colors to the lineart.
Greyscale for light and shadow. Normaly I do shadow and light directly in the flat color layer but I wanted to test this way of coloring
Final Version of Merceline with Background. I wish I had found the contest earlier, then I would have had more time for the coloration