Next add a body around it which is a shape like this. Practice this shape a few times until you are happy with it, then move on.
Now add a head which is roughly egg shaped.
Next, draw two ovals for the feet
For the beak, draw two orange triangles joined together in a beak shape.
Big white eyes make your penguin look younger. Smaller eyes can make cartoons seem evil. This would be useful if you were doing a whole strip with lots of cartoon penguins. Some could have big eyes and others could have smaller eyes.