The first step of this project is to find some inspiration for your portrait. If you have a look at the websites below, you will find that artists have different styles and use different media. Think about which ones you like and dislike and why. Think about how the artists have created these effects. Once you have decided on an artist to focus on you could choose to do some research and find out a bit about them.
Next, you need to decide who is going to be the subject of your portrait. This might affect the style that you choose to use.