Intriguing result. I wish I still had Photoshop. When I worked as a graphic designer (in print media), I was an expert with both Photoshop and Illustrator. Do you have access to Illustrator? See, I’d have taking the initial pieces of that collage, traced the images in Illustrator to create a vector file, then manipulate it in myriad ways to achieve the desired effect. Of course, vector files were easier on the computer and storage memory and the operating space during print runs back then – printers LOVE vector files. And, vector files are near infinitely scalable up or down.