1st off you need to number your photos. On to the CC, the 1st and 3rd are a little to dark for my tastes, maybe try to increase the exposure? Also the sky is blown out in the first one, it would be nice to see that. The skull photo I would like to see the top of the post as well, but overall a nice shot and my favorite of the bunch. I would like to see a bit more detail in the barn on the last (if you could re-do this shot, I would wait for a cloudy day and do some long exposure, as this has the chance of being a great shot).