its more like 'cows avoiding the summer sun'. i think the photo might have been more powerful if you had got a little closer in and got more detail on the cows.
Nice composition remind me of the dutch master painters. Over exposed however, and you could crop on the left withou loosing anything. If you'd walked around to the right, could you have gotten the shot without the pines in the background - just the one tall tree with the cows under it? That would be nice.