A friend's children painted a canvas I gave them and I painted them into it. The fun messy doodle background is 90% theirs. I added a few streams to pop out some of the shapes they painted. I might do this as a series.
I found a Gap ad in a 90s Vanity Fair magazine; the background was completely white, perfect for doodling a background on it. I also highlighted the woman's freckles and lips with a bronze Sharpie.