Great comparison photos, its amazing how quickly the plant life grows over everything.
In the first pair, what is it that has appeared in the second photo in the bottom right next to the tree, some sort of nest?
Haha, sort of. It's a "shelter" of sorts. I've seen them all over forests in Dorset and Hampshire and always wonder why both as I don't see how they can offer much in the way of protection from the elements. I like that photo as it is different from the rest in that the most noticeable change is a man-made construct.
Apparently there's going to be a lot of development on the fields surrounding the woods, so I think I might have to keep tabs and do some photos from the woods looking into the fields before and after development.