Love those, especially the first: great composition, geometry, textures, contensts: all!
#1 - not sure if the tree in the foreground adds to, or detracts from, the nice "V" shape in the background. My eye ping-pongs between the two:)
You could clone out that nearby tree in the first shot, but it would give you a less interesting image, IMHO.I like the lone tree facing off against the mighty forest.