Mundanely, I went to school for Architecture. I took a number of artistic classes including photography and painting. I fell in love with acrylic paint, which was fast-drying, easy to work with, and could be cleaned with water. I have artistic friends who swear by oil paint. (I tend to swear at oil paint because it takes days to dry!)
While acrylics were nice, they had a tendency to crack and chip if applied to a flexible surface. My LARP interests drew me to Liquitex Paint, which is flexible when dry. Panther Primitive Tents recommend Liquitex Paint for adding details to their canvas tents. They recommend watering down the Liquitex to a ratio of three parts water to one part paint.
Also, this stuff keeps indefinitely. Back in 2009, I was planning to attend the World Science Fiction Convention is Montreal. Author Seanan McGuire was also attending, and I’d been chatting with her via LiveJournal for about a year. I really wanted to make her a piece of Fan Art to thank her for making me giggle with silly posts. She said she loved the color orange and My Little Pony, so I painted a pony onto a purse I bought secondhand. This was the base coat: I’d printed a pony picture, cut it out, and traced the outline with paint.
This is the finished purse. I painted white highlights over Applejack’s hair, and added a black outline. This is exactly the same technique I use to paint heraldry onto shields. In fact, the bottle of yellow paint in this photo is the same one I’m using today. (The white bottle gave up its ghost for the Pennsic Heraldry Boards.)
Painting is fun; it’s like tracing with a brush. And if you mess up with Liquitex, just take a piece of damp paper towel to the bad section, remove the offending paint, and draw the lines again. Painting isn’t hard; it’s tricky. Knowing the tricks makes all the difference between the work of a novice verses a master.