Well, if you are on this page that means you have decided to create the contrasting background for your painting. As you did at the previous lesson, please take a good photo of your painting before you start working on the background, just in case you want to compare the results with and without background.
When done, choose the best result. Take a good photo of your work and upload your file at the next part (topic) of the lesson.
Please follow the steps in this video tutorial.
Happy painting!