As an Englishman who emigrated to Australia many years ago, your photos bring back memories of my youthful days in the old country. Everything was usually green and gray. I think on average it rains 2 days out of 3 in the U.K. I used to cycle a lot in those days and the unpredictable weather was not welcome. It is sometimes said that the ancient Romans never fully conquered England because the weather was so lousy. It didn't seem worth the trouble.
However, I like your compositions. The grays match the greens, and the occasional patches of blue almost spoil the effect.
It could be I'm a mild sufferer of SAD syndrome; Seasonal Affective Disorder, whereby long periods of grey sky tend to cause a slight depression. I've often wondered about that, because my spirits are definitely lifted when the sun shines.