A wonderful shot and I love the sharpness even if it looks a little bit unusually to me, but I also love how the fields give a limit to the space while the clouds go further and further. Catched a really good shot.
I love how the sky dominates the image with those huge clouds. Also you didn't blow your highlights in the clouds, very nice! However, I do think that it is a little bit on the dark side, I would have tried to recover some of the shadows.