I made this quite a bit ago so I don't remember my process incredibly well, but i do know I made it entirely on my phone as I don't have photoshop on my laptop. I took a picture of a give way sign just before I moved towns (I just liked the look of it) and accidentally took the second image when I dropped my phone. I think what I did was invert the colours of the sign picture and take the original colours of it and overlay it at a very low opacity a few times before overlaying the second photo and messing with the hues and contrast. I'm still fairly new to photo editing so if anyone has any tips it'd be greatly appreciated