Step 4: Adding color
Continue filling in the image using the paint-by-number technique with each subsequent color until your image is completely colored. One important note: if you are coloring in a section using a lighter, more transparent color, such as yellow or red, make sure to erase your pencil grid lines before you do so. Otherwise, you'll see the grid through the coloring.
Flip the piece over and color the second side in the same way. Color both sides of the extra base section as well.