I personally prefer under exposed shots as it usually brings the clouds out ALLOT more, this is a perfect example in this image
great definition in the clouds
I think your composition is getting allot better, and as you notice my comments are getting... less harsh
i can feel this image allot more than your earlier work
My one problem is the Blue flower... it seems a little out of place, you should have cut it or hid it under the grass but thats about it...