First one is great! I like the composition of the cornfield and the direction of the clouds but it's crooked. A lot of these shots are crooked I've noticed. Are you shooting on a tripod that may have a short leg? You've got powerlines in a couple shots that I would try and avoid. On the darker shots you've got a bit of noise too. If you're on a higher ISO try bumping it up. That's my little bit of critiquing. Very cool series though.