The original mural at the Transformation Pet Center appeared in The Tucson Murals Project on Sept. 15, 2008. See
Meow Mural with Mutt Motif. The mural has since been re-done and there's no longer a meow. This photo is from Aug. 2, 2017:
Click on the photo for a larger and sharper image.
Update (February 25, 2021): Here are two closeups that Jerry Peek took today:
Monty “Ses” Esposito painted the dog on the left and Rickey “Sketch” Bush painted the dog on the right.
Update (May 29, 2023): Sketch brought Jerry to see this long-time Tucson mural… still here after 20 years or so:
Years after the mural was painted, Sketch and Monty stopped by the business. The owner had been trying to find them to update the mural… she didn't want anyone else to do it. They painted the side and front of the building teal and added the black paw prints running along it.
Sketch told me the names in the signature at the left side, but I didn't write them down… I'll need to ask him again. Here's a closeup from his print, followed by a photo today with higher contrast to help the letters stand out: