I think this deserved a much better result, it is a strong simple image that tells a story, I like how you have captured the gentleman in the background just coming into the scene.
There is a longing about this image I cannot define. The solidity of the rock wall vs. the frailty of the woman with her walker? The way the sun seems to have passed her by in favor of the wall. The half-hidden someone seemingly waiting for her to arrive? Beautiful.