Once a new persona is created there is a set of predefined sections that are meant to make it easier for beginners to start off. However, it does not mean you can't customize this set of sections or the layout.
On the contrary! You should take full advantage of the editor in order to create powerful and visually engaging personas.
Click "ADD SECTION" and start using image, graph and a bunch of other sections to create truly inspiring personas!
P.S. Learn more about creating effective data-based personas at UXPressia Academy.