Well, what more can I add? Even before I read the others' comments, I thought by myself: I think I like 3 the best of this series, and 4 is a nice edit of the same, too. Ha! Going with the crowd, eh? But I also like the bluish colours and curves of the mountains in 2 with that huge bird doing its circles.
#1 and #4 are gorgeous. Love the editting in 4, and number 1 is beautiful. I like how the branches hang from the top. =)