I found a little drawing I did a while ago with a circle template and a fine black sharpie, done before I started doing the colored outlines. I tend to stay away from black outlines so I flipped the drawing over and scanned it from the back since the paper I used was thin enough to allow the color to bleed through.
I kept adjusting the colors until I got the combination on the rich blue background. Then I applied different filters to change the look even further. I'm totally in love with my last version that looks like it was printed on some type of silk. My mission today is to figure out how I did that because I sure would like to be able to do it again at will.