1. Open the "Craftsman Coloring Pages" game on your mobile device.

2. On the main menu, tap the play button to begin.

3. Browse through the 18 available black-and-white images featuring different characters and scenes.

4. Tap on the image you want to color to open it.

5. At the bottom of the screen, you will see a palette with 15 different colors.

6. Tap on any color from the palette to select it.

7. Touch the area of the picture you want to fill with the selected color. The color will automatically fill the space.

8. Continue selecting different colors and touching areas of the image to complete your artwork.

9. If you want to change a color, simply select a new color and tap the area again to overwrite it.

10. Use your creativity to mix and match colors as you like.

11. Once your image is fully colored to your satisfaction, tap the save icon to store your colored picture in your device's gallery.

12. Return to the main menu to choose another image and start again.

13. Repeat the process to color all 18 pictures using various colors and styles.

14. Enjoy the relaxing and creative experience while improving your imagination and motor skills.