Now you know all my secrets. lol. I flipped the image and used the left side background on the right (but zoomed in more... actually, I cropped your original image tighter... but basically the same thing except it cut off the bottom of the original image). Done on my phone, not photoshop, so basically stringing workarounds together.
The bottom image is just for fun!
Thanks for enjoying. I love that original image. Not new, of course, but always happy to see it!