This clip is worth watching a few times- the narrator is a fast talker.
To increase your technical skill, you will practice using the Pen Tool. The next video below is very clear on how to use the Pen Tool, so be sure to watch it and practice with the guitar image in Photoshop. Handin as a .jpg 300 dpi image.
To really understand the Pen Tool, watch this short video:
Use the guitar image to practice using the pen tool.