I'd say it's because you're too far away from the barn, and including the fence doesn't compensate for much. Wide angles are for using close. A similar 'oblique' framing of the barn from closer in would be better. The perspective distortion of the barn leaning slightly away from the eye doesn't look good. I think to have that 'true' and the perspective of the fence slightly off instead. IMO the colour doesn't look nice at all. Oversharp, synthetic digital picture with a weird, blue cast and OTT sky effect.