Free hand drawing on cupcakes is not easy. Last X'mas order I had to make a whole bunch of these cupcakes, and all I had in the house was blue and white and some silver dragees. I had to make 250. So, I experimented with different ways on the cupcakes. It didn't take a lot of time, and who doesn't like to eat those creamy cuppies...!
My hand was very tired, But my point is, you don't have to follow a template. Get whimsical!