Thunderclouds over the wheat field

Missed the photograph I was originally after today after having to return home to pick up a fully charged battery when the two in the grip decided to die on me. When I returned I could no longer see the rain coming from the clouds so anyways just photomerged two pictures (both at F13 and about 4 seconds) to boost saturation and cloud definition and this is the result.
Boosted contrast, reduced vibrance, saturation and altered curves. Burned the clouds in a little, reduced noise and picture size and finally sharpened the picture.
Its a little different to your normal landscape but hope you like it.