#2 defintely works the best of all of these for me - though I will mention that I wish we could see your feet, but minor detail. The whole atmosphere of that one is amazing.
#4 would work for me, except, I looked at it and my first thought was 'Harry Potter' - and I am just not the largest Harry Potter fan - So nothing against the photo in itself as it was well executed. (Though.. I wonder what would have happened if you didn't have the large tree directly behind you. It may have been better to have that as a solid subject behind you as opposed to numerous branches to be dodging around)
Very creative work