I'd like to see the option for a background image on the banner to personalize/differentiate our profile. I build Ivan Castro's profile page.
Our profile nav banner has Ivan Castro's avatar to the far left, with two buttons on the side. On the other end is our location and fee structure. Also a script font of the section being viewed.
The nav banner is set up in flex columns. If the buttons were placed under the avatar in the first column, that would leave 2/3 of the banner for an image.(Also add a bit of height.) Add a partially transparent overlay on the last column, you can maintain the current content with the image. You could set dimensions and file sizes for the images.