I like the realistic use of natural color here. All too often photographers on this site give in to the urge to "kick it up a notch". This is understated, but lovely.
there's a bit of framing on the top and right, but not on the right. Am not sure you meant to do that, or if that was accidentally created during crop. won't effect my rating of the image, but just a note on it.
Bit of a surreal image! Is that Silbury Hill? For me though there is too much black in the bottom half of the image. Cropping might help and the rule of thirds?