You can make your public profile more appealing by adding pictures to your profile description, as you can see in the picture below.
Here are the steps you will need to follow:
1. Upload a photo to a hosting site to get a direct link for your picture. For that, go to http://tinypic.com/ click on "Choose File" to choose a picture from your computer and then click on "Upload Now".
2. Copy the direct link of the picture
3. Paste the direct link into your profile's description, in Settings-->Public profile-->About, with the following format:
4. Once you click on the "Publish" button, your picture will be displayed on your public profile's description.