First of all I want to thank 
This is my final artwork, I hope you like it. The angels in heaven and the little devils in hell.... But here it seems that there is someone who is not well located! Jejejejejejejejejejeje:
The process I followed was as follows:
First the angel drew it with pencil and I added the characters.
Then I started coloring it with markers and crayons.
If you want to participate in this fun contest just click here
Thank you very much and a thousand blessings to those who have the courtesy to see this publication.