When it comes to painting penguins on a black and white ground, there are a few things you need to keep in mind. First, you need to make sure that the paint you use is of a good quality. This will ensure that the paint does not run or smudge when you are trying to paint the penguins. Second, you need to make sure that you have a steady hand when you are painting. This is because if you are not careful, you may end up with a lot of paint on the ground. Finally, you need to make sure that you use a light touch when you are painting the penguins. This will ensure that they look natural and not like they have been painted on.