This image looked to me like a B/W or grayscale photo that had been colored. Indeed, this is exactly what the wall looked like with vermilion leaves climbing up the gray wall. The image has only been brightened a bit, no other manipulation.
I made this photo after I collected a handful of gorgeous leaves in my left hand, and shot the photo one-handed with the camera in my right hand. I like the results of the depth and shadows. I'd like to try this again, but with my new macro lens and a tripod. Marcia