Each chapter of the comic project "The Princess of Love having a different artist, I have to hire many people to help me drawing them. The majority of them have never drawn comics in their life, therefore, I give them a test to teach them what they should expect in that project.
The test being to redraw one of my sketches as if it was a panel from the comic. That way, we can figure the strengths and weaknesses of the art style and adjust it if needed.