Okay, I've done this MANY times. Enlarge the photo to the size you want it or as near as you can. Tape it to a light board, sunny window or computer screen that's lit. Tape tracing paper over it then do a line drawing of the important parts. After you get that done, take the tracing paper off and divide it up to the shapes that you want it to be. You may have 3, 4, 5 or more sections depending on how intricate your design is. Then pick a starting point and number it. Looking at other PP patterns will help you figure out exactly how to do this. It's a little tricky at first but it ain't rocket science. If I can do it so can you just have to know that it's like anything else, it requires practice.