The text on that bench cannot be changed. You can order a bench with your own text here:
https://www.ourcornermarket.com/Bench-Personalized-Cast-Stone.html
It does not allow for photos though. As for graphics: Perhaps a local engraver could provide you with a small plaque (or balloon in your case) that could be engraved & glued to the bench. We can't guarantee that, but some customers have done this.