That is a nice and subtle "sepia" tint. I like that! Much nicer than my in-camera sepia mode... those photos turn practically ORANGE. Ugh. But this... very nice. Calming.
And once more I can only say: Photo Themes
(I'm cleaning up there, that is why I am so much promoting it nowadays).
"My favourite FOOTPATH" ... might have disappeared to Page 2 by now since I am resuscitating one old theme after the other, but... it is there!
The sepia really adds something to your image here. In black and white it would have lost something. You placed the image at a point in time that can't be determined. This is what we call 'art' in the field!