I am a big fan of using borders, especially grungy ones. I layered 3 of them here.
This is one of my all-time fave photos of my hubby and our nephew Otis.
I used -
Studio Basic - Studio Favorites: Templates #4
https://www.sweetshoppedesigns.com/sweetshoppe/product.php?productid=43587&cat=&page=1
Studio Basic x Rachel Jefferies - High Cool Bundle
https://www.sweetshoppedesigns.com/sweetshoppe/product.php?productid=42880&cat=&page=1