Select the rectangle tool, draw a rectangle and fill it with color. Click the text tool again and enter text.
Continue to draw other shapes in the same way. Roughly speaking, here are just some graphics.
Select the freehand tool. To draw the starting point of the arrow, hold down the Ctrl key, click the left mouse button, and then click the left mouse button at the end point. Go back to the property bar and select an arrow with an endpoint.