Beloved Companion Shrine

I want to make a shrine for my cat Mango, who was put to sleep in December. I wanted to have him cremated and buried with me when I die, but that was just not possible. I've been working on sketches and I like the way it looks, but there is an empty spot in the lower right side that deeds something, maybe a short prayer or verse.

I have the perfect box to use it is roughly 4" X 6" and 2" deep with a lid. The Bast figure I have fits perfectly inside. I will be making an embossed metal frame for Mango's picture. BTW I did some research online and found out that disposable aluminium pans work for embossing. I made a sample and it was a lot easier than the soda cans. For the lid I want to cut a round window. On the inside of the lid I will have the story of adopting Mango.