Pick a color from the Color Palette and use the brush tool on the canvas, you can choose from an impressive selection of Brush Tips and sizes.
Brush tips are of many different shapes, from circles to stars, pick your favourite! Click and drag the left mouse button to paint whatever you choose.
Slide the box from left to right to choose the size of your paintbrush.
If you need more help then please click here.
Before you start on the beautiful details of your animation, try drawing a simple outline. This way, you can get the overall composition looking great, and you can make sure everything's going to fit in the frame! Once you're filling in the details, you can start deleting your outline if you don't need it any more.