I've done you the favor of linking both images so they can be seen in this thread:
I really like the first one. The only technical problem I see is that there is some flare coming in from the top right. The photo might also be a little too saturated. I really like the framing and the subject matter though.
The second one seems too spartan. There is a lot of open space around the tree, and the sloping ground makes it seem a bit out of place. It is a really nice tree though, I just would have framed it differently.
Good shots!