Check out the ceiling made from corrugated tin. The weathered and aged look complements the rustic feel of the stone house. Note the wood valance at the roof-wall junction: a clever solution that provides space for LED strip lighting.
This kitchen has a corrugated metal ceiling and side wall. The dark and rough surface draws the eyes upwards in this room. It gives the room a rustic and country feel to it. I think it makes the room feel a bit smaller, than a light colour paint would do.