Open up the file you saved there, or do that tutorial first. Select the Bear, right click and copy.
Paste the Bear into a new document
Choose the Line tool and a thickness for it. Make short zigzag strokes releasing the click to make the lines. Make sure the lines are touching. That is to say, there are no gaps between the lines. Remember you can undo mistakes by pressing Ctrl Z.
Complete the zigzags around the Lionís head.
Choose a color for the mane.
Click the outline with the Bucket tool, using the same color you used for the mane.
Ready to make a pride of Lions? Select, hold Ctrl and drag to make copies.
Have fun changing the colors!
Save your work. Go to File/Save As, give your work a name and save as a BMP, JPG or TIFF file so you can use them later.
Very good job!