Subjects are out of focus in the first two shots. Composition is good. I kinda want to see the flower field on the first one too. You should have shot one with the whole field in focus.(if you did please show it On the last one the sky looks too bright and bland, maybe try underexposing one stop and try getting a better White balance for the sky so you can get a deeper blue. Another thing is I would have shot closer to the truck, the grass in the foreground is unnecessary. I know I sound critical, but they're actually good shots otherwise, keep it up