Post-processing Turned up the contrast pretty much with a black and white layer set to soft light (100%), then darkened most of the picture a bit with a black and white layer set to multiply (30%).
Ligthened and turned up the contrast some more with some selective curves layers (one for the door and window and one for the stones around the door). Darkened the wall slightly with a curves layer.
Gave the picture a more yellowish colour by turning the blue curve a bit down, and the red and green curves slightly down with curves. Lightened the whole picture a bit more with a curves layer and also made the blackest areas lighter.