I appreciate all the nice comments about the photo. The sky is somewhat blown out, but the day was overcast with light rain and I was shooting handheld without any filters. In my opinion, the greyness of the day comes across in the photo and, as stsinner indicated, adds a mood to the photo that is fitting for a battlefield shot. I could have probably shot this in a way to bring out some detail in the clouds, but decided instead to focus on what was most important in the shot.
I disagree with the comment that it would be "nicer" with "a nice blue sky and some clouds". The blue sky and clouds just weren't there that day, so your C&C is not helpful at all. That remark came off as somewhat condescending.